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COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Oil Serum 28ml

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Original price Rs 1,250.00
Original price Rs 1,250.00 - Original price Rs 1,250.00
Original price Rs 1,250.00
Current price
Rs 1,100.00 VAT included
Rs 1,100.00 - Rs 1,100.00
Current price
Rs 1,100.00 VAT included
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COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Oil Serum (28ml) is a leave-in, silicone-forward finishing oil built around the brand's proprietary Tripeptide-132 HCl (PEPTIDE-132β„’), a lab-selected peptide the brand states binds to the core structure of hair keratin to reinforce broken internal bonds. In Mauritius humidity it works like a light sealant β€” smoothing the frizz that salt air and AC-to-outdoor temperature swings create β€” by coating the cuticle rather than penetrating it. It contains Fragrance (Parfum) and five declared EU 26 fragrance allergens, so it is not suitable for anyone building a fully fragrance-free routine or with a known fragrance sensitivity on the scalp.

At-a-Glance (Is this for you?)

100% Genuine (Adilsons policy). Not Fragrance-Free. Not asserted FA-Safe (see Section 30B). Halal-Friendly* and Vegan-Friendly* (self-assessed, see Section 26). Not a Wudu-relevant leave-on facial product, but assessed for hair contact in Section 17.

Attribute Detail
Brand COSRX
Product Type Leave-in hair bonding oil serum
Net Volume 28ml
Key Active Tripeptide-132 HCl (PEPTIDE-132β„’) β€” concentration not publicly disclosed
Hair Types Marketed for all hair types; reviewer consensus favors coarse, damaged, or frizz-prone hair
Primary Concern Targeted Strand bond repair, shine, frizz control
AM/PM Suitability Either β€” applied whenever hair is styled, wet or dry
Routine Complexity Straightforward
MFDS Classification General Cosmetic (no functional/whitening/wrinkle/UV claim found)

Pros: lightweight, fast-absorbing finish reported by most reviewers; visible shine and softness without a heavy film; small 28ml format is easy to test before committing to the full 3-step system; part of a genuine, verified in-catalog 3-step routine (see Section 37).

Caveats: contains fragrance and 5 declared allergens β€” a real consideration for sensitive scalps or fragrance-avoidant users; at least one reviewer found it slightly tacky when layered directly over the PEPTIDE-132 Treatment mask; brand clinical figures for the line are self-reported marketing claims, not independently published studies.

Low-Energy and Burnout Viability (For tough days)

This is one of the few hair products that qualifies as bedside-compatible: no sink, no rinsing, no precise dosage tool, and it can be applied one-handed to towel-dried or fully dry hair. It requires no wait time before styling or sleeping.

On a low-energy day, this alone β€” smoothed through mid-lengths and ends β€” is a viable single-step "hair routine" when a full wash-day is not happening. Because it contains fragrance, skip it on nights when your scalp already feels irritated or sensitized rather than adding a new variable.

Quick Start (60-Second Essentials)

Step 1 (When): Apply to towel-dried or fully dry hair, any time of day. Step 2 (How much): 1-2 drops for short/fine hair, 3-4 drops for long/thick hair, warmed between palms first. Step 3 (How): Smooth through mid-lengths and ends only β€” avoid the scalp and roots, where oil can look greasy and has no bond-repair job to do there.

Introduce this as the ONLY new product in your routine. Wait a full 14 days before adding anything else. This isolation window ensures you can identify whether any reaction is caused by this specific product.

AM Routine Guide (Morning sequence)

1. Detangle dry or slightly damp hair. 2. Warm 1-3 drops between palms. 3. Smooth COSRX PEPTIDE-132 Hair Bonding Oil Serum through mid-lengths and ends. 4. Style as usual (heat tools are fine β€” the silicone base offers some slip and mild heat-glide benefit, though this is not a dedicated heat-protectant claim).

In Mauritius mornings, humidity means hair absorbs ambient moisture and can frizz within minutes of stepping outside β€” this product's silicone film reduces how much of that moisture the cuticle takes up erratically, which is why it reads as "anti-frizz" rather than "anti-dryness."

PM Routine Guide (Evening sequence)

1. On wash nights, use after the PEPTIDE-132 Shampoo (and Treatment, if it's a treatment night). 2. Apply to towel-dried, still-damp hair for the smoothest finish. 3. Smooth the Oil Serum through mid-lengths and ends. 4. Sleep on a smooth pillowcase if possible to reduce overnight friction that undoes the smoothing effect.

On non-wash nights, a lighter reapplication to dry ends before bed helps counter the day's humidity frizz without needing to rewash.

How to Use (Amounts, technique, and tips)
Area Amount Notes
Short/fine hair 1-2 drops Warm between palms first
Medium/long hair 2-3 drops Focus mid-lengths and ends
Thick/coarse/very long hair 3-4 drops Layer a second pass on ends if still dry

Technique: rub the oil between your palms first to distribute it evenly before contact β€” applying directly from the dropper concentrates too much product in one spot. Required skin/hair state: works on both damp and dry hair; damp application spreads more evenly and is the brand's suggested method. Wait time: none required before styling.

Hands deliver 100% of product. Cotton pads absorb approximately 30-40%. Use hands unless applying as an exfoliant swipe (not applicable to this product, but the rule holds generally).

Routine Encyclopedia (Where every product type fits)

This is an encyclopedia map of all product types. You do not use all of these daily. You select modules based on your skin state.

Global execution rules: viscosity ladder runs thinnest to thickest, water-phase before oil-phase, treatments before seals. Wait-time defaults: watery layers 10-20s, serum layers 30-60s, before sunscreen 10-15 min if going outdoors. Amount defaults: watery toner/essence 5-8 drops, serum/ampoule 2-3 drops, eye product Β½ rice-grain per eye, gel moisturizer 1-1.5 peas, cream 1-2 peas, occlusive seal rice-grain to pea-size, sunscreen 2-finger rule for face plus 1 finger for neck. Hydrators sit best on slightly damp skin; retinoids on fully dry skin; if a routine pills, stings, or feels heavy, reduce layers, not increase.

AM Maximum Stack: 1. Rinse/Gentle Cleanse (optional) 2. pH-Prep Toner (optional) 3. Hydrating Toner Layers (optional, 1-3) 4. Essence (optional) 5. Mist (optional) 6. Booster/Soothing Serum (optional) 7. Antioxidant Lane (choose one) 8. Pigment Support Lane (choose one) 9. Hydration Serum Lane (optional) 10. Oil-Control/Sebum Lane (optional) 11. Peptides/Growth-Factor Lane (optional) 12. Eye Serum/Cream (optional) 13. Moisturizer 14. Optional Sealing Layer (if dry/AC) 15. Sunscreen SPF50+ PA++++ (non-negotiable) 16. Lip SPF (optional). In AM, prioritize comfort and SPF adherence over stacking β€” in high humidity, fewer layers often perform better.

PM Maximum Stack: 1. Micellar (optional pre-cleanse) 2. Oil Cleanser/Balm (if SPF/makeup) 3. Water Cleanser 4. pH-Prep Toner (optional) 5. Hydrating Toner Layers (optional) 6. Essence (optional) 7. Soothing/Barrier Serum (optional) 8. Anchor Product (bold placement, always) 9. Targeted Serum (optional, only if non-conflicting) 10. Moisturizer 11. Sleeping Mask (optional) 12. Occlusive Seal (optional) 13. Spot Treatment/Pimple Patch (as needed) 14. Lip Sleeping Mask (optional). Do not layer retinoids with AHA/BHA in the same night; keep "one lane" per night.

This Oil Serum sits outside the facial-skin stack entirely β€” it is a hair-only product used on lengths and ends, applied after any hair wash-day steps and before or instead of heat styling. One-lane rule for skin actives (Retinoid OR Exfoliation OR Strong Vitamin C OR Acne-control) does not apply to hair oils, but the same "reduce layers if it feels heavy" principle does.

Viscosity and Layering Science (Where it fits)

This is a light, fast-absorbing oil β€” thinner than a balm or butter, thicker than a water-based mist. It is the last step in any hair routine: apply after shampoo, treatment, and any water-based leave-in, never before them, since oils block water-based products from absorbing.

Tripeptide-132 HCl has a brand-stated molecular weight of 384.9 Daltons, below the commonly-cited 500 Dalton threshold used as a rough guide to whether a molecule can move past the outermost surface layer rather than sitting on top of it β€” the brand frames this as relevant to reaching the hair's internal keratin structure rather than just coating it, though this is the brand's own mechanism explanation rather than an independently published penetration study.

This product appears thin and fluid in the bottle and spreads exactly as thin on hair β€” there is no rheological surprise here, unlike a thick-looking gel that thins under pressure.

What to Expect (Results timeline)
Phase Timeframe What You Will Notice
Immediate 0-24 hours Visible shine and smoothness on application β€” this is a surface/optical effect from the oil and silicone film, not yet a structural change
Adjustment Week 1-2 Learning your hair's correct dose; too much reads as greasy, especially near the scalp
Consistent Use Week 4-6 If paired with the Shampoo and Treatment, brand-cited data claims noticeably reduced breakage and improved softness versus using any one product alone
Ongoing Week 8+ Results plateau at a "maintained" state β€” the oil is managing existing strand condition, not permanently repairing damaged hair, which cannot be undone chemically, only grown out

There is no purge-versus-reaction pattern relevant to a leave-in finishing oil β€” any scalp irritation from the fragrance content would show up quickly (redness, itching within days), not weeks later.

Who Should Use This (Clinical triage)

Before starting this product, your routine should already include a shampoo suited to your scalp and, ideally, the PEPTIDE-132 Shampoo and Treatment for the bond-repair claims to apply as brand-tested (the clinical figures cited below were measured for the 3-step system, not this oil in isolation).

Tier Criteria
PROCEED IF You want shine/frizz control on lengths and ends, are not fragrance-sensitive, and apply away from the scalp
PAUSE IF Your scalp is currently irritated, flaking, or reactive from another product change
STOP/CONSULT IF You have a known fragrance or essential-oil-component allergy (this product contains Hexyl Cinnamal, Limonene, Citronellol, Linalool, and Benzyl Benzoate)
Skin Type Compatibility
Hair/Scalp Type Compatibility Notes
Fine/thin hair Use sparingly 1-2 drops max, ends only β€” easy to over-apply and look weighed-down
Thick/coarse hair Well suited Reviewer consensus favors this hair type; can use 3-4 drops
Color-treated/bleached hair No contraindication found The shampoo in the same line is explicitly marketed color-safe; no evidence this oil affects color
Oily scalp Apply away from roots This is a lengths-and-ends product; scalp application would add unnecessary oil to an already oily scalp
Fragrance-sensitive scalp/skin Not recommended Confirmed Fragrance/Parfum plus 5 EU 26 allergens
Targeted Concerns (What it treats)

Strand bond weakness/breakage: Tripeptide-132 HCl is marketed to bind to hair keratin's core structure, reinforcing internal protein bonds that heat, chemical treatment, and mechanical friction break down over time. Frizz and flyaways: the silicone-forward base (Dimethicone, Dimethiconol, Aminopropyl Dimethicone) forms a smoothing film over the cuticle that reduces how visibly humidity lifts individual strands. Dullness/lack of shine: the oil blend (argan, olive, camellia, jojoba, rice bran, grape seed, macadamia) adds surface gloss.

What this product cannot do: it cannot reverse split ends (only cutting removes split ends β€” this product can only make them look temporarily smoother until the next wash), cannot regrow hair or address hair loss from the follicle, and cannot permanently "repair" chemically damaged hair, since hair is dead keratin with no living repair mechanism once it leaves the follicle.

Best Paired With (Synergistic pairings)

These pairings are anchor-centric to this Oil Serum and verified in Adilsons' live catalog as of 2026-09-09.

Pilling note: avoid combining this oil with another heavy silicone-based product (e.g. a separate silicone serum) on the same strands in one session β€” layering multiple film-formers can create a waxy buildup that needs a clarifying wash to remove.

Myth Replacement (Common misconceptions)

MYTH: "Hair oil repairs split ends." REALITY: No topical product bonds split hair back together permanently β€” oils and silicones temporarily smooth the split so it looks sealed until the next wash; the only real fix is a trim.

MYTH: "More drops means faster results." REALITY: Excess oil sits on the surface as visible grease and does not accelerate any bond-repair process β€” the brand's own usage guidance is 1-4 drops depending on hair length/thickness, not a saturating amount.

MYTH: "Peptides in hair care work exactly like peptides in skincare serums." REALITY: Hair is dead keratin with no living cells to signal, unlike skin. Tripeptide-132 HCl's claimed mechanism is physical/chemical bonding to existing keratin structure, not a biological signaling pathway β€” a meaningfully different mode of action from a skincare peptide serum.

Climate Fit for Mauritius
Season Conditions How to Adjust
Summer (Dec-Mar) High heat and humidity, more sweat and salt-air exposure at the coast Use on ends only to avoid a heavier, oilier feel; reapply lightly after a swim once hair is towel-dried
Winter (Jun-Sep) Drier air, more AC/heater use indoors Can use slightly more product as hair loses ambient moisture faster in dry indoor air
Cyclone season (Jan-Mar) Intense humidity swings and rain The silicone film's frizz-control benefit is most noticeable in this window β€” reapply after rain exposure once hair is dry

Sugar cane burning season (July-November): PM2.5 particulate increases during the harvest burn period. Because this product leaves a film-forming silicone finish, hair can attract slightly more airborne dust on high-particulate days β€” an extra brush-through or light rinse before bed helps, rather than skipping the product.

Complete Ingredient Transparency
Ingredient Concentration Evidence Grade Mechanism Source
Tripeptide-132 HCl (PEPTIDE-132β„’) Not publicly disclosed Emerging* (brand in-vitro/lab data, not independently published) Brand states it binds to hair keratin's core, reinforcing broken protein bonds Synthetic peptide
Dimethicone / Dimethiconol / Aminopropyl Dimethicone Not disclosed; leads the INCI, so present in meaningful quantity Traditional Forms a smoothing, frizz-reducing film over the hair cuticle Synthetic (silicone)
Argania Spinosa (Argan) Kernel Oil + trailing plant oils (olive, camellia, jojoba, rice bran, grape seed, macadamia) Not disclosed; trace-level INCI position Traditional Adds surface gloss and mild emolliency Plant

Full INCI (WebSearch synthesis of the brand's official product page and third-party ingredient databases; not independently cross-checked end-to-end against a direct page read, so treat the exact order as an approximation): Water, Dimethicone, Hydrogenated Poly(C6-14 Olefin), Cetyl Ethylhexanoate, Dicaprylyl Carbonate, Dimethiconol, Disiloxane, Dicaprylyl Ether, Aminopropyl Dimethicone, Argania Spinosa (Argan) Kernel Oil, Hexyldecanol, Fragrance (Parfum), Hexyl Cinnamal, Limonene, Citronellol, Tocopherol, [--- Estimated 1% Line ---] Linalool, Benzyl Benzoate, Olea Europaea (Olive) Fruit Oil, Camellia Japonica Seed Oil, Simmondsia Chinensis (Jojoba) Seed Oil, Oryza Sativa (Rice) Bran Oil, Vitis Vinifera (Grape) Seed Oil, Macadamia Ternifolia Seed Oil, Tripeptide-132 HCl.

*Tripeptide-132 HCl's evidence sits below the 1% line by INCI position, consistent with an actively-marketed hero ingredient present at a trace/functional concentration β€” its inclusion may be primarily for the bonding mechanism rather than a bulk formulation role. This does not necessarily mean it's ineffective at low concentration (peptides are often active at low percentages), but the exact concentration has not been disclosed.

Preservative system: no dedicated preservative was clearly itemized in the WebSearch-sourced ingredient list found for this pass; several of the listed ingredients (Dicaprylyl Ether, Disiloxane) can also function as solvents/emollients rather than preservatives. Full ingredient list not independently disclosed beyond what is stated above at the time of writing.

Allergens and Fragrance Disclosure

Fragrance status: Contains Fragrance (Parfum) β€” NOT fragrance-free. Scent description: not independently described in available research beyond general "pleasant" characterizations in reviews; no specific scent family confirmed. Intensity: not independently measured; treat as noticeable given 5 declared allergen components.

EU 26 Allergen Detected?
Hexyl Cinnamal Yes
Limonene Yes
Citronellol Yes
Linalool Yes
Benzyl Benzoate Yes

*Based on brand-declared INCI as found via WebSearch synthesis. The term "Fragrance" or "Parfum" in the INCI list may contain additional undisclosed allergens beyond the 5 confirmed above. Patch test advised for sensitive individuals, especially if this oil will contact the scalp at all.

Alcohol disclosure: Hexyldecanol present is a fatty alcohol (moisturizing, not drying) β€” no drying alcohol (e.g. Alcohol Denat, SD Alcohol) detected in the declared INCI.

Conscious and Permissible Formulation

Halal: *Self-assessed by Adilsons based on available INCI data. No ethanol from fermentation, no porcine-derived ingredients, and no haram animal-derived ingredients detected in the declared ingredient list. This is NOT a formal Halal certification. Muslims with stricter requirements should consult their own scholars.

Vegan: *Self-assessed by Adilsons based on available INCI data. No animal-derived ingredients detected in this specific SKU's declared list. This is NOT a formal vegan certification by The Vegan Society or equivalent body.

Cruelty-free: *Brand-stated policy. Not independently certified by Leaping Bunny, PETA, or equivalent third-party audit. *Brand states cruelty-free, but COSRX sells products in Mainland China where post-market animal testing may be required by law; cross-border e-commerce sales may be exempt.

Microplastic status: Contains silicone polymers (Dimethicone, Dimethiconol) which are not classified as microplastics under the EU's current microplastic restriction definitions (which target solid, insoluble synthetic polymer particles, not liquid silicones) β€” Microplastic-Free by that definition, though environmentally-conscious users should note silicones are still persistent, non-biodegradable ingredients.

Evidence, Regulation and Claims

MFDS classification: General Cosmetic. No evidence found of Korean Functional Cosmetic registration (a category reserved for specific skin claims like whitening, wrinkle improvement, or UV protection, not hair-bonding claims).

Clinical evidence: COSRX cites a brand-run 4-week study claiming the full 3-step PEPTIDE-132 routine (this oil plus the Shampoo and Treatment) improved hair protein bonding by 2.7x and softness by 1.8x versus single-product use, and a separate in-vitro lab test claiming an ~11.1% increase in tensile strength of artificially-damaged hair swatches. *Institution, sample size, and independent publication were not found for either figure β€” treat both as brand-published marketing evidence rather than peer-reviewed clinical data, and note the tensile-strength test used lab-damaged hair swatches, not live human scalp hair.

Evidence confidence: Low/Marketing-Only* for the specific percentage claims above; Moderate for the general, widely-accepted principle that silicone-based leave-in oils reduce visible frizz and add shine.

Product Identity and Provenance
Field Detail
English Name PEPTIDE-132 Ultra Perfect Hair Bonding Oil Serum
Brand COSRX
Product Line PEPTIDE-132 (COSRX's first hair-care line, publicly launched/reviewed from approximately August 2025)
Country of Manufacture Not independently confirmed for this specific SKU; COSRX is headquartered in Seoul, South Korea
Net Volume 28ml
PAO / Shelf Life Not publicly disclosed for this SKU; check the PAO symbol (open-jar icon) printed on your unit's packaging
Sensory and Chemical Profile
Attribute Detail
Texture Light, fluid oil
Viscosity Thin (water-thin to light-fluid tier)
pH Not publicly disclosed (not typically a headline spec for a non-aqueous hair oil)
Absorption Speed Fast (seconds) per reviewer consensus
Finish Glossy, smooth
Tackiness Low at recommended dose; can feel tacky if over-applied or layered directly over the Treatment mask per at least one reviewer

Fungal Acne/Malassezia Safety: FA-Conditional β€” not a confident FA-Safe claim. Malassezia-feeding ingredient screens are built for facial skin contact; this is a hair-lengths product applied away from the scalp, which reduces relevance but does not make it a verified FA-Safe product for scalp use.

Pilling Risk and Texture Mechanics

Assessment: Low, at the recommended 1-4 drop dose.

Specifics: layering this oil over another heavy silicone or wax-based product (e.g. a separate styling pomade) on the same strands can create a waxy, hard-to-remove buildup.

Mitigation: apply to towel-dried (not soaking wet) hair, use fewer drops than you think you need, and add more only if ends still look dry.

Stability, Spoilage and Oxidation

A silicone-and-plant-oil blend like this can show a color shift (yellowing) or develop a rancid, "old-oil" smell if the plant-oil fraction oxidizes β€” a genuine spoilage sign to discard on, since oxidized oils generate free radicals that could worsen the exact strand damage this product is meant to address.

Storage: keep away from direct bathroom-window sunlight and away from shower steam heat, which accelerates oxidation faster in Mauritius's ambient humidity than in a cooler, drier climate. Spoilage signs: rancid smell, color darkening, separation that won't remix with shaking. When in doubt, discard.

Safety and Patch Test Protocol

Patch test on the inner forearm for 24 hours, then behind the ear for 24 hours, before applying near the hairline or scalp edge β€” this matters more than usual here given the confirmed fragrance allergen content.

If adverse reaction: STOP ALL ACTIVES. For 72 hours, use only a gentle shampoo and a plain, fragrance-free conditioner. After 72 hours, reintroduce one product per 14 days. Emergency stop signals: hives, swelling, blistering, persistent burning, or breathing difficulty β€” seek emergency care.

Troubleshooting Guide
If You Experience Likely Cause Solution
Greasy roots Applied too close to scalp or used too much Reapply only to mid-lengths/ends next time; use fewer drops
Scalp itching/redness Fragrance sensitivity Discontinue; switch to a fragrance-free leave-in alternative
Hair feels waxy/heavy Layered with another silicone/wax product Clarifying shampoo wash, then reduce to one film-forming product per routine
Color/smell changed in the bottle Oxidation Discard
Common Mistakes to Avoid

1. Applying to the scalp/roots instead of mid-lengths and ends. 2. Using too many drops "for faster repair" β€” repair claims are tied to the full 3-step system's brand-cited study period, not the amount of oil used per session. 3. Skipping the patch test because "it's just hair oil" β€” the fragrance content makes this a genuine consideration for scalp-adjacent use. 4. Applying to soaking-wet hair, which dilutes and unevenly distributes the oil.

Overuse threshold: there is no established maximum daily use, but consistently over-applying leads to visible buildup requiring a clarifying wash β€” more product does not mean faster bonding.

Usage Economics (How long it lasts)

At an estimated 20 drops per ml (a standard dropper approximation) and a recommended 1-4 drops per use, a 28ml bottle holds roughly 560 drops β€” approximately 140-560 uses depending on hair length and how many drops each session uses.

Used daily at the lower end (1-2 drops for shorter/finer hair), this bottle can reasonably last several months; used at the higher end for long, thick hair applied daily, expect it to run out faster. Correct dosage (mid-lengths and ends only, not saturating) extends the bottle's life without sacrificing the smoothing effect. Consider reordering roughly 2 weeks before you expect the bottle to run dry, to allow for shipping time.

Complete Your Routine (Exact routine + pairings)

This oil is the final, sealing step of the PEPTIDE-132 3-step system β€” it does the least on its own and the most as part of the full routine the brand's cited study actually measured.

PM wash-night routine: 1. COSRX PEPTIDE-132 Shampoo (cleanse). 2. COSRX PEPTIDE-132 Treatment (10 minutes, ~2x/week, then rinse). 3. Towel-dry. 4. COSRX PEPTIDE-132 Oil Serum (1-4 drops, mid-lengths and ends).

Non-treatment wash days: Shampoo β†’ a daily conditioner (see alternative below) β†’ this Oil Serum on towel-dried hair.

If your hair is fine or oily-scalp-prone: use the lowest drop count and keep application strictly to the bottom third of your hair length. If you're heading into cyclone-season humidity: a light reapplication after any rain exposure, once hair is dry, maintains the frizz-control effect through the day. If your scalp starts to itch or flake: pause this product and the Treatment (both contain more complex formulas) and confirm the plain Shampoo alone is tolerated first.

Stock-true bundle for the full system (verified active in Adilsons' catalog): COSRX PEPTIDE-132 Shampoo 200ml + COSRX PEPTIDE-132 Treatment 120ml + this Oil Serum, used in that order on wash days.

After purchasing, you will receive our skincare education email series covering this product in depth.

The recommendations above are based on formulation synergy with COSRX PEPTIDE-132 Ultra Perfect Hair Bonding Oil Serum, not on margin or stock levels. If a pairing does not exist in our catalog, we say so. If you already own a product that fills the same role, use what you have first.

Is This the Best Choice? (Mindful alternatives)

If you want a hair oil without fragrance/allergen content, or a different texture, these are verified active alternatives in Adilsons' catalog as of 2026-09-09:

Why Choose This Over the Alternative?

Choose COSRX PEPTIDE-132 Oil Serum over the SOME BY MI scalp tonic alternative if you need finishing shine and frizz control on already-grown hair lengths, not scalp-level anti-hair-loss support: they solve different problems.

Upgrade Axis What's better in THIS What you trade off Who benefits
Sensory/climate fit Fast-absorbing, glossy finish suited to humid Mauritius air Contains fragrance/allergens the SOME BY MI tonic does not carry at the same level Users prioritizing shine/frizz control over full fragrance-free status
System synergy Shares an active (Tripeptide-132 HCl) with the in-catalog Shampoo and Treatment Best results are brand-tested as a 3-product system, not standalone Users willing to buy the full PEPTIDE-132 routine

Upgrade to this over a plain oil if: IF you already own the PEPTIDE-132 Shampoo or Treatment, THEN this oil completes the system the brand's cited study actually measured. IF your priority is scalp health or hair thinning, THEN a scalp-targeted product (see alternatives) addresses a different biological target and this oil will not help.

Don't upgrade to this if: you have a diagnosed fragrance allergy matching any of the 5 confirmed allergens; you are not currently using or planning to use the matching Shampoo/Treatment and just want a neutral, unscented finishing oil; or you have an oily scalp and tend to apply hair products too close to the roots.

If you match the system-synergy or climate-fit reasons above, this is worth choosing. If not, a simpler, fragrance-free alternative is sufficient and safer. Consistency beats complexity.

The No-Buy Redundancy Check

This product's PRIMARY function is: leave-in shine, softness, and frizz control on hair lengths and ends via a silicone-and-oil film plus a bonding peptide. You do NOT need this if you already own another leave-in hair oil or silicone serum you're satisfied with β€” finish that product first.

Check your current products for an open hair oil/serum with a similar silicone-forward base before buying a second one; unlike skincare, hair oils don't carry a strict PAO expiry risk in the same way, but an unfinished bottle is still waste. Stacking this with another silicone-heavy leave-in offers No Benefit (same mechanism, same film-forming job) β€” pick one.

Sourcing and Authenticity

This product is sourced through authorized Korean distributors β€” primarily Craver Co., Ltd (South Korea), alongside other verified distribution partners. Craver is a major Korean beauty distributor and the parent company of SKIN1004, handling authorized distribution for multiple K-beauty brands. All products are shipped directly to Mauritius via verified channels.

For comprehensive information about how we verify authenticity, our layered verification system, and how to check your product at home, visit our dedicated Authenticity and Trust page.

Quick verification tips for this SKU: genuine COSRX barcodes are laser-etched/printed directly on the box, not applied as a sticker; check for a scannable QR code linking to COSRX's official.cosrx.com/record authenticity tool. As a newer 2025-launched line, older pre-QR-system stock is unlikely, so absence of a working QR code is a stronger red flag here than on COSRX's older SKUs.

About COSRX

Parent Company: Amorepacific Corporation (acquired COSRX Inc. on October 30, 2023). Founded: 2013. Headquarters: Seoul, South Korea. Hero Product: historically the Advanced Snail Mucin line; PEPTIDE-132 is the brand's newer, first entry into hair care. Manufacturing: not independently confirmed whether in-house or contract-manufactured post-acquisition.

COSRX built its reputation on a minimal, low-pH, "skin-friendly" formulation philosophy for skincare. The PEPTIDE-132 line, launched around August 2025, extends that same ingredient-forward, mechanism-led marketing approach into hair care β€” part of a broader industry trend trade press has termed the "skinification" of hair care, applying skincare-style actives and claims to strand and scalp products.

Genuine Community Experiences

Independent beauty-blog reviews of this SKU (The Happy Sloths, Arktastic, Purplechives, and a YesStyle blog trial of the full line) converge on a lightweight, fast-absorbing texture that adds visible shine and softness on most hair types, especially coarse or damaged strands, without a heavy or greasy feel at the recommended dose.

One critical note recurs: at least one reviewer (Arktastic) found the oil could feel slightly tacky or greasy specifically when layered directly on top of the PEPTIDE-132 Treatment mask, and preferred a lighter oil for their hair type in that combination. No Reddit r/AsianBeauty or r/HaircareScience thread was found for this specific SKU as of this research pass β€” community reviews here are sourced from beauty blogs and retail review sections rather than forum discussion.

Packaging and Practical Details
Attribute Detail
Primary Packaging Glass or plastic dropper bottle (28ml)
Closure Type Dropper pipette
Hygiene Rating Good β€” dropper avoids finger contact with bulk product
Travel-Friendly Yes β€” 28ml is within most carry-on liquid limits

Sustainability: check local recycling guidance for glass/plastic dropper components separately, as droppers often mix glass and rubber/plastic parts that need separating before recycling.

Frequently Asked Questions

Is this a leave-in or rinse-off product? Leave-in. Apply to damp or dry mid-lengths and ends and do not rinse out.

Does it work on all hair types? The brand markets it for all hair types; reviewer consensus favors coarse, damaged, or frizz-prone hair, with at least one fine-haired reviewer finding it could feel heavy if over-applied or layered with the Treatment.

Is it fragranced? Yes β€” confirmed Fragrance/Parfum plus 5 EU 26 allergens (Hexyl Cinnamal, Limonene, Citronellol, Linalool, Benzyl Benzoate) in the researched INCI. Not suitable for a fully fragrance-free routine.

Can it be used on color-treated or bleached hair? No brand contraindication found; the shampoo in the same line is explicitly marketed color-safe, and an oil/silicone finishing product is not typically associated with stripping color.

Does it help with hair loss? No. This is a bond/strand-finishing product (shine, softness, reduced frizz on existing strands), not a scalp-targeted anti-hair-loss treatment.

Glossary
Tripeptide
A short chain of three amino acids linked together; used here as a lab-designed peptide the brand states interacts with hair keratin.
Keratin
The structural protein that makes up the bulk of hair; once hair leaves the follicle it is biologically "dead" and cannot repair itself the way living skin does.
Dalton (Da)
A unit of molecular weight; smaller molecules are generally considered more likely to move past a surface layer than larger ones.
Silicone (Dimethicone)
A synthetic ingredient that forms a smooth film over a surface β€” in hair care, this is what creates a glossy, frizz-controlled finish.
EU 26 Allergens
A list of 26 fragrance-related substances the EU requires to be individually named on labels above a certain concentration, due to known allergy potential in some users.
Leave-in product
Applied and not rinsed out, as opposed to a rinse-off shampoo or mask.
PAO (Period After Opening)
The number of months a product remains safe/effective to use after first opening, shown as an open-jar icon with a number on the packaging.
The Adilsons Promise

Every product sold by Adilsons Beauty is 100% genuine, sourced through authorized Korean distribution channels. Full details on our verification system: Authenticity and Trust.

Our team is available to help you build a routine, troubleshoot reactions, and answer ingredient questions. WhatsApp: +230 5 778 2336.

For in-depth skincare education, visit our blog at adilsons.mu/blogs/k-beauty or subscribe to our email to get our guided education series delivered to your inbox.

Delivery and Returns β€” Mauritius

Coverage: Island-wide delivery (Mauritius).

Processing and Timing: Orders process in 1-2 business days; usually ready by Day 3 for pickup by our delivery partners/regional team. Partner collection can take up to 1 week. After pickup, delivery typically takes 1-5 business days (weekdays only).

Express: May be available by region; request on WhatsApp: +230 5 778 2336.

Liquids/Sensitive Items: Serums, toners, liquid makeup (and kits containing liquids) are pickup or door-to-door only; checkout enforces this.

Scheduling: Deliveries run by region on set schedules; we will contact you the evening before.

Pickup: Citadelle Mall pickup available.

Returns: No change-of-mind exchanges.

Refunds (Summary): For defective/damaged on receipt (report within 48h), wrong item, or manufacturing defect within 6 months. Refunds via bank transfer (7-10 business days); card refunds may incur a 5% processor fee (fee not charged for defects/order errors). Opened skincare/personal-care items are non-returnable (except if damaged on delivery).

Source of Truth: This is a quick snapshot. If anything differs, the policy pages are final.

Store Policies: For the most up-to-date information, please review our Shipping Policy and Refund Policy.

The Final Verdict

Best for: anyone with coarse, damaged, or frizz-prone hair who wants a fast-absorbing, glossy finishing oil, ideally alongside the matching PEPTIDE-132 Shampoo and Treatment for the routine the brand's cited study actually tested.

Key benefits: lightweight, non-greasy finish at the recommended dose; visible shine and smoothness reported consistently across independent reviews; a genuinely coherent 3-step system with a shared, real (if brand-published rather than independently peer-reviewed) active ingredient story.

Keep in mind: this is not fragrance-free, so it is not a fit for fragrance-avoidant or allergy-prone users; the brand's most impressive figures (2.7x, 1.8x, 11.1%) are self-reported marketing claims rather than independently published clinical data; and it does not address hair loss or split ends.

Oncology and Treatment-Sensitized Skin

Assessment: Consult Oncologist. This product is fragrance-containing (Parfum plus 5 declared EU 26 allergens), and skin/scalp sensitivity commonly increases during and after cancer treatment, making a scented leave-in oil a reasonable one to flag rather than assume is fine.

If the scalp is affected by treatment (radiation to the head/neck, or general heightened sensitivity), a fragrance-free alternative is the safer default. Consult your oncology care team before introducing any new hair or skin products during treatment.

Environmental Defense and Lifestyle Factors

Particulate adhesion: because this is a film-forming silicone leave-in, hair can attract slightly more airborne dust and PM2.5 on high-particulate days, most relevant during Mauritius's July-November sugar cane burning season. An extra brush-through or a light water rinse before bed helps clear surface particulate without needing to skip the product entirely.

Antioxidant note: Tocopherol (Vitamin E) appears in the INCI, though at a trace/mid-list position rather than as a headline antioxidant concentration β€” present, but not the product's primary environmental-defense mechanism.

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