COSRX HYDRIUM TRIPLE HYALURONIC MOISTURE AMPOULE

Values You Can Trust: 100% Genuine (Adilsons sourcing policy) / FA-Safe / Fragrance-Free / Vegan-Friendly* / Halal-Friendly*. *Self-assessed by Adilsons based on available INCI data. No animal-derived ingredients detected in the declared ingredient list. This is NOT a formal vegan certification by The Vegan Society or equivalent body.

*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.

The Oily-Tight Paradox: If your T-zone shines by noon but your cheeks feel tight, that is not "oily skin" — it is dehydrated-oily skin overproducing sebum to compensate for a lack of water, not a lack of oil. Addressing the water deficit with a humectant like this one, sealed properly, tends to calm that overcompensation over several weeks rather than adding more oil to the surface.

Pros: genuinely fragrance-free; layers under almost anything; lightweight gel-serum texture suits humidity; three HA weights target both surface and slightly-deeper hydration.

Caveats: can feel tacky for a minute before it absorbs; in very dry AC air it needs an occlusive layer on top or it can backfire; brand does not disclose an exact HA percentage.

This is a bedside-compatible, no-rinse step: dropper, smooth on, done. It works fine applied with unwashed hands in a pinch and needs no precise dosage or wait time to be safe, which makes it a reasonable single "treatment" product on a day when a full routine feels like too much.

Minimum viable routine: cleanser (or micellar wipe if no sink is available) → this ampoule → whatever moisturizer or SPF you already own. If even that is too much, patting it on top of a dry-clean face and skipping straight to SPF in the morning is better than skipping hydration entirely.

Step 1 (When): AM and/or PM. Step 2 (How much): 2-3 drops, or roughly 1-2 dropper draws for face and neck. Step 3 (How): Smooth onto slightly damp skin, then pat gently — do not rub.

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.

1) Cleanser (optional light rinse) → 2) Hydrating toner (optional) → 3) COSRX Hydrium Triple Hyaluronic Moisture Ampoule, 2-3 drops, wait 30-60 seconds → 4) Moisturizer if skin still feels tight → 5) Sunscreen SPF50+ PA++++.

In Mauritius's humid mornings, humectants like this one pull water from the surrounding air rather than from deeper skin layers, which is exactly why it performs better here than in a dry climate — one thin layer is often enough before SPF.

1) Double cleanse if wearing sunscreen/makeup → 2) Hydrating toner (optional) → 3) COSRX Hydrium Triple Hyaluronic Moisture Ampoule, 2-3 drops → 4) Any treatment serum (retinoid/acid nights only, see Conflict Solver) → 5) Moisturizer or facial oil to seal.

This product carries no active-lane restriction, so it can sit in any PM routine regardless of which active lane (retinoid, acid, or recovery) that night falls on.

Technique: Pat or press, do not rub — friction degrades the film the ampoule leaves and increases irritation risk. Apply to slightly damp skin so the HA has surface water to bind to; wait 30-60 seconds before the next step.

Hands vs cotton pad: hands deliver 100% of the product; cotton pads absorb roughly 30-40% of it, so use hands for this step rather than a pad.

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 rules: viscosity ladder 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: toner/essence 5-8 drops; serum/ampoule 2-3 drops or 1 pump; eye product ½ 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, +1 finger for neck. Hard cap rule: if the 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, choose toner OR essence if pilling-prone) → 5) Mist (optional) → 6) Booster/soothing serum (optional) → 7) Antioxidant lane, choose ONE (Vitamin C or gentler antioxidant) → 8) Pigment-support lane, choose ONE → 9) Hydration serum lane (this product's slot) → 10) Oil-control lane, choose ONE → 11) Peptide/repair lane (optional) → 12) Eye product → 13) Moisturizer → 14) Optional sealing layer (AC/dry days) → 15) Sunscreen SPF50+ PA++++ (non-negotiable), 2-finger rule, reapply every 2 hours outdoors → 16) Lip SPF (optional). In AM, prioritize comfort and SPF adherence over stacking — in high humidity, fewer layers often perform better.

PM Maximum Stack: 1) Micellar pre-cleanse (optional) → 2) Oil cleanser if SPF/makeup worn → 3) Water cleanser → 4) pH-prep toner (optional) → 5) Hydrating toner layers (optional) → 6) Essence (optional) → 7) Soothing/barrier serum (optional) → 8) [Anchor active, if any that night] → 9) Hydration serum lane (this product's slot) → 10) Moisturizer → 11) Sleeping mask (optional) → 12) Occlusive seal (optional, avoid if clog-prone) → 13) Spot treatment/patch (as needed) → 14) Lip sleeping mask (optional). Do not layer retinoids with AHA/BHA in the same night; keep "one lane" per night.

Lane strictness: Retinoid OR Exfoliation OR Strong Vitamin C (LAA) OR Acne-control active per routine — barrier/hydration steps like this ampoule can always accompany any lane. If unsure, default to the safest lane (barrier/hydration) and reduce layers.

This is a mid-viscosity water-based gel-serum — thicker than a toner or essence, thinner than a cream. Apply it after any watery toner/essence steps and before your moisturizer, following the water-phase-before-oil-phase rule.

Phase compatibility: water-phase, so it layers cleanly under both gel and cream moisturizers and does not interact badly with oil-phase products applied afterward.

Before starting this product, no specific prerequisite step is required — it is gentle enough to be a first or only serum in a routine. It pairs well as a foundation before introducing stronger actives later.

Dehydration and tightness: the three hyaluronic-acid weights bind water at the surface and slightly deeper layers, reducing the tight, "papery" feeling. Dullness: plumped, hydrated skin scatters light more evenly, which reads as a healthier glow rather than an actual brightening effect. Barrier comfort: Panthenol supports the skin's moisture-repair function alongside the HA.

What this product cannot do: it cannot treat active acne, fade pigmentation, or replace a moisturizer's sealing function — hyaluronic acid holds water, it does not supply the lipids a true moisturizer provides.

Cleanser (AM/PM): primary — Anua Heartleaf Succinic Cleansing Foam 150ml, a low-pH gel-to-foam wash that won't strip the barrier this ampoule is trying to hydrate. Alternatives: SKIN1004 Madagascar Centella Poremizing Deep Cleansing Foam 125ml, Anua Heartleaf Quercetinol Pore Deep Cleansing Foam 150ml, Anua Hearleaf Pore Control Cleansing Oil Mild 200ml (as a first-step PM oil cleanse).

Sunscreen (AM, non-negotiable): primary — Beauty of Joseon Relief Sun: Rice + Probiotics 50ml, SPF50+ PA++++, dewy enough to sit well over this ampoule. Alternatives: SKIN1004 Madagascar Centella Hyalu-Cica Water-Fit Sun Serum 50ml, Anua Heartleaf Silky Moisture SunCream 50ml, SKIN1004 Madagascar Centella Air-Fit Suncream Light 50ml.

Moisturizer to seal (PM, or AM if very dry): primary — Isntree Hyaluronic Acid Aqua Gel Cream 100ml. Alternatives: SKIN1004 Madagascar Centella Poremizing Light Gel Cream 75ml, Beauty of Joseon Red Bean Water Gel 100ml, THE FACE SHOP Jeju Aloe Fresh Soothing Gel.

Pilling pairs: stacking this under a heavy silicone-primer or a thick balm without waiting can cause pilling. Wait a full 60 seconds and pat (don't rub) the next layer on to avoid it.

Water-Permeable (wudu-compatible): this is a fast-absorbing, non-film-forming water-based gel-serum; once it has been patted in and absorbed, water reaches the skin normally during ablution.

Adilsons provides this assessment based on the product's physical properties. Rulings on wudu validity vary between scholars. Consult your own trusted Islamic authority.

MYTH: "Hyaluronic acid moisturizes on its own." REALITY: HA is a humectant — it binds water already present; without a sealing moisturizer in dry air, it can pull water from your own deeper skin layers instead of the atmosphere.

MYTH: "More drops = faster hydration." REALITY: Excess product beyond 2-3 drops mostly sits on the surface and increases tackiness without adding hydration — the skin can only bind so much water at once.

AC environment warning: in air-conditioned environments, hyaluronic acid draws moisture FROM your deeper skin layers instead of from the air. Always seal this product with an occlusive when in AC for extended periods.

Hard water note: Mauritius tap water hardness varies by region; a hard-water rinse before this step can leave a light mineral film that slightly slows absorption — a quick second splash of plain water before applying can help.

*These PHAs sit below the estimated 1% line in the INCI list, suggesting they are present at a trace/sub-efficacious concentration. Their inclusion may be primarily for marketing rather than clinical effect.

Full INCI (as verified via INCIDecoder): Water, Glycerin, Butylene Glycol, Dipropylene Glycol, 1,2-Hexanediol, Methyl Gluceth-10, Sodium Hyaluronate, Carbomer, [--- Estimated 1% Line ---] Panthenol, Tromethamine, Ethylhexylglycerin, Hyaluronic Acid, Hydrolyzed Hyaluronic Acid, Gluconolactone, Lactobionic Acid.

Preservative system: Ethylhexylglycerin and 1,2-Hexanediol function as mild preservative-boosting glycols rather than classic parabens/formaldehyde-releasers.

Fragrance status: Fragrance-Free — no ingredient named Fragrance/Parfum or any essential oil appears in the INCI. Scent: no detectable scent. Intensity/dissipation: 0 out of 5, instant.

EU 26 allergen screen: none detected in the declared INCI. Alcohol disclosure: Alcohol-Free — no ethanol or denatured alcohol present.

Halal status: Halal-Friendly*. *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 status: Vegan-Friendly*. *Self-assessed by Adilsons based on available INCI data. No animal-derived ingredients detected. This is NOT a formal vegan certification by The Vegan Society or equivalent body.

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

Microplastic-Free: Yes — no polymer microbead or film-forming plastic detected in the declared INCI (Carbomer is a synthetic thickener, not a microplastic).

MFDS classification: General Cosmetic — no functional-cosmetic (whitening/wrinkle/UV) claim was found for this product. Clinical evidence: no product-specific clinical trial was located; the hydrating mechanism of hyaluronic acid and panthenol is well-established in general ingredient science, but that is not the same as a study on this exact formula.

Evidence confidence: Medium — ingredient-level science is strong, product-level claims are Marketing-Only*. *Brand claims are based on ingredient rationale; no publicly available clinical dataset exists for this specific product.

FA safety: FA-Safe — no long-chain fatty esters, oils, or classic Malassezia-feeding ingredients appear in the INCI.

Assessment: Low. Pilling mainly shows up if this ampoule is layered under a heavy silicone-based primer or a thick balm without a full 60-second wait. Mitigation: apply to slightly damp skin, wait the full 60 seconds, and pat rather than rub the next product on.

Color baseline: clear to very faintly milky gel; any yellowing, cloudiness, or separation signals it should be discarded rather than used. Storage: keep away from direct sun and bathroom heat/humidity spikes — a bedroom shelf outlasts a steamy bathroom cabinet in Mauritius's climate.

Spoilage signs: off/sour smell, visible separation, or a change in texture. When in doubt, discard.

Patch test: apply a pea-size amount to the inner forearm, check at 24h, then behind the ear for another 24h, re-check at 72h, then begin facial use.

72-hour barrier reset: if an adverse reaction occurs, stop all actives. For 72 hours use only a gentle cleanser, plain moisturizer, and mineral SPF — no acids, retinoids, Vitamin C, exfoliants, or essential oils. After 72h, reintroduce one product per 14 days.

Emergency stop signals: hives, swelling, blistering, persistent burning, or breathing difficulty — seek emergency care.

1) Applying to bone-dry skin instead of slightly damp skin, which reduces how well the HA can bind water. 2) Skipping the sealing moisturizer step in AC rooms. 3) Using more than 2-3 drops expecting faster results. 4) Applying right before a heavy silicone primer with no wait time, causing pilling. 5) Expecting it to treat acne or pigmentation — it is a hydrator, not a treatment serum.

Overuse threshold: there is no meaningful "overuse" ceiling for a fragrance-free hydrator like this beyond the pilling/tackiness trade-off — twice daily is a reasonable maximum for most people.

Usage math: a 40ml bottle at 2-3 drops per application, used twice daily, gives roughly 150-250 total applications. Lifespan: at that dosage, expect the bottle to last approximately 3-4 months; using 2-3x the recommended amount will shorten this without adding benefit.

Reorder timing: plan to reorder about 2 weeks before the bottle is expected to run out to allow for delivery time in Mauritius.

This ampoule's job is to hydrate; it sits in the water-based serum slot, after toner and before moisturizer, in both AM and PM. Default dosage is 2-3 drops with a 30-60 second wait before the next step.

AM: cleanser → ampoule → sunscreen. PM: cleanser (double if wearing SPF) → ampoule → moisturizer.

If you are in AC all day, add an occlusive seal on top so the HA does not pull water from your own skin. If your skin is barrier-compromised right now (stinging on moisturizer, visible flaking), pair this with a barrier-repair moisturizer rather than any active serum for a week before resuming actives. If you are also using a retinoid or acid at night, this ampoule can sit before that active with no conflict — it is not on the same active lane.

Bundle — AM Hydration Starter: Anua Heartleaf Succinic Cleansing Foam → this ampoule → Beauty of Joseon Relief Sun: Rice + Probiotics.

Bundle — PM Repair & Seal: Anua Hearleaf Pore Control Cleansing Oil Mild → SKIN1004 Poremizing Deep Cleansing Foam → this ampoule → Isntree Hyaluronic Acid Aqua Gel Cream.

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 Hydrium Triple Hyaluronic Moisture Ampoule, 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.

If you want a different texture or a larger-volume option in the same hydrating-serum category, consider one of these in-catalog options rather than assuming this is the only route to the same result.

Primary alternative: INNISFREE Green Tea Seed Hyaluronic Serum 80ml — a larger-volume hyaluronic serum with a green-tea antioxidant angle, for anyone who wants more product per bottle.

Alternatives: JUMISO Waterfull Hyaluronic Serum 50ml (similar tropical-climate positioning); COSRX The Hyaluronic Acid 3 Serum 20ml (same brand, newer line, smaller size); APLB Hyaluronic Acid Ceramide HA B5 Mist Essence 105ml (mist format with added ceramides for barrier support).

Mindful-use: if you already have a comparable hydrating serum at home, finish it first to avoid waste and get a fair read on results.

Choose COSRX Hydrium Triple Hyaluronic Moisture Ampoule over INNISFREE Green Tea Seed Hyaluronic Serum if you need a strictly fragrance-free formula with no botanical extracts that could carry trace allergens.

If you are extremely fragrance-reactive, choose this ampoule. If you want an antioxidant boost alongside hydration and tolerate botanical extracts fine, the Innisfree alternative is a reasonable, larger-volume pick. If your barrier is currently compromised, do not upgrade to a stronger active yet — repair barrier first with a plain moisturizer regardless of which HA serum you choose.

Timing: both sit in the same AM/PM hydration-serum slot with no lane conflict either way.

Don't upgrade if: you are already using a HA serum you tolerate well — same-mechanism stacking adds cost, not benefit.

If you match 2 or more upgrade triggers above, this is worth choosing. If not, the alternative is sufficient and safer. Consistency beats complexity.

This product's PRIMARY function is: surface and near-surface hydration via hyaluronic acid. You do NOT need this if you already own another fragrance-free HA serum you like and use consistently — finish that one first.

Inventory audit: check whether you already have an open HA serum or ampoule at home; a PAO of roughly 12 months after opening means buying a second bottle before finishing the first one is waste.

Stacking assessment: running this alongside another plain HA serum offers No Benefit (same mechanism) — pick one. Running it alongside a niacinamide or vitamin C serum offers Significant Benefit (different pathway).

This product is sourced through authorized Korean distributors — 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.

COSRX also runs its own product-authenticity QR verification tool; check for a batch/lot code on the box base as an additional at-home check alongside our own verification system.

COSRX (founded 2013, Seoul, South Korea, acquired by Amorepacific Corporation in October 2023) built its identity around a minimal, low-pH, "skin-friendly" formulation ethos — the brand name itself is a portmanteau of "Cosmetics" and "Rx." The Hydrium line, which this ampoule belongs to, is built around lightweight, gel-textured hydration rather than one single named hero active.

COSRX's flagship line remains its snail-mucin-based Advanced Snail range, but Hydrium was built specifically to answer hydration needs without the sensory weight of that line.

Aggregated sentiment on iHerb and general community roundups (SkinSort) skews positive: reviewers with dry and sensitive skin frequently report noticeable, comfortable hydration with no scent, and several note it works especially well layered under a moisturizer during heat or sensitivity flare-ups.

A recurring mild complaint is a brief sticky phase right after application before it fully absorbs, and a few reviewers feel it does not perform meaningfully differently from other hyaluronic-acid serums given the size. We did not find a specific, quotable Reddit thread for this exact product at the time of writing — the sentiment above reflects aggregated retailer and community-roundup commentary rather than individually verified quotes.

Sustainability: the glass bottle is recyclable where local facilities accept it; the dropper's rubber bulb and plastic components should be separated from the glass before recycling.

Can I use this every day, both AM and PM? Yes — it has no frequency restriction and is designed for twice-daily use.

Can I layer it with retinoids or acids? Yes, it sits in the hydration lane, not an active lane, so it does not conflict with a retinoid or acid used elsewhere in the same routine.

Is it fungal-acne safe? Based on the declared INCI, which contains no long-chain fatty esters or oils commonly flagged as Malassezia-feeding, this product is generally considered FA-safe by the community — individual results can still vary.

Why does my skin feel tackier than expected? Most often too much product or too little wait time before the next step; use 2-3 drops and pat, not rub.

Is it safe during pregnancy? The declared INCI contains no ingredients on the standard pregnancy-caution list, but always check with your own doctor before adding any new skincare product during pregnancy.

Humectant

An ingredient that attracts and holds water in the skin.

Hyaluronic Acid

A humectant capable of holding many times its weight in water at the skin's surface.

Panthenol

Pro-vitamin B5; soothes and supports the skin's barrier-repair process.

PHA

Polyhydroxy Acid; a larger, gentler acid molecule than AHA/BHA, providing mild exfoliation and hydration.

Ampoule

A concentrated serum format, typically viscous, meant to deliver a short-term active boost.

PAO

Period After Opening — the number of months a product is considered safe to use once opened.

Occlusive

A product or ingredient that forms a film on skin to slow water loss.

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.

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.

Best for: anyone with dehydrated, tight, or dull skin who wants a genuinely fragrance-free hydrating serum that layers under almost anything, including other actives.

Key benefits: three-weight hyaluronic acid complex, Panthenol for barrier comfort, fragrance-free, lightweight enough for Mauritius humidity.

Keep in mind: it is not a moisturizer by itself and needs sealing in AC-heavy days; the brand does not disclose an exact HA percentage or pH.

Assessment: Suitable. This formula is fragrance-free, retinoid-free, and uses a minimal, mild preservative system (Ethylhexylglycerin, 1,2-Hexanediol) with no ingredients flagged as oncology-contraindicated.

Consult your oncology care team before introducing any new skincare products during treatment.

AC/humidity swing interaction: in extended air-conditioned exposure, this product's humectants can pull water from your own deeper skin layers rather than the (dry, conditioned) air around you. Seal with an occlusive moisturizer whenever you know you'll be in AC for several hours, and lean on it more heavily as a standalone step on humid outdoor days when it can draw from ambient moisture instead.