Dr. Reju-All Advanced PDRN Hair Density Scalp Serum 15ml

Values: 100% Genuine (Adilsons authenticity policy) · FA-Conditional* · Halal-status not asserted (see Sec 26) · Vegan-status not asserted (see Sec 26) · Fragrance-status not confirmed*.

*Fragrance and full-formulation status could not be independently confirmed — see Sec 23/24 for exactly what we could and couldn't verify.

Thinning hair or a widening part line is rarely "just cosmetic" — it's frequently tied up with how people feel seen, especially when it happens faster than expected. This section exists so you can decide, with real information rather than marketing language, whether this specific serum actually fits your situation.

Pros: Lightweight, non-greasy roll-on format suited to daily humid-climate use; combines several genuinely researched ingredient classes (PDRN, peptides, a soy-germ extract with published human-use data) rather than a single hero claim; cooling, low-effort application; small 15ml size is easy to trial.

Caveats: No published human clinical trial on this exact topical serum for hair density (the strongest PDRN hair evidence is from clinician-administered injections, not leave-on application); the "Exosome" ingredient's exact biological source is not disclosed anywhere we could verify; 15ml is a small volume for a twice-daily habit.

In Mauritius heat, scalp sweat and sebum get mistaken for "dirty hair," and washing more than once daily (or with a harsh clarifying shampoo every wash) strips the scalp's protective lipid layer. A stripped scalp barrier compensates by producing more sebum and can become reactive — exactly the oily, itchy cycle you were trying to fix.

This serum is applied to a clean, towel-dried scalp and is designed to sit ON TOP of a normal wash schedule (see Sec 8), not to replace gentler shampoo habits. Its base (Butylene Glycol, Pentylene Glycol, Glycerin, Saccharide Isomerate) is humectant-led rather than surfactant-based, so it does not itself strip the scalp the way an over-washing routine does.

Checklist: Bedside-compatible: yes (roll-on, no sink needed). Requires rinsing: no. Requires precise dosage: no — roll until the scalp is lightly covered. Applicable with unwashed hands: yes. Requires wait time: no mandatory wait before sleep. Single-product routine: yes, it can stand alone.

This is one of the lowest-effort products in a hair routine — roll it on, massage briefly with the built-in metal ball, and go to sleep. On a genuinely low-energy night, skip the shampoo step and apply directly to a dry or slightly damp scalp instead of forcing a full wash.

Step 1 (When): PM is the brand's recommended primary use; AM is fine as a second application if using twice daily.
Step 2 (How much): Roll evenly over the scalp area of concern — enough to lightly dampen the scalp, not the hair shaft.
Step 3 (How): Massage with the metal-ball applicator for 30-60 seconds per section; leave in, do not rinse.

The one rule: Introduce this as the ONLY new hair/scalp 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. Rinse or lightly cleanse if the scalp feels oily from overnight product. 2. Towel-dry to damp, not dripping. 3. Roll on Dr. Reju-All Hair Density Scalp Serum, section by section. 4. Style as normal once absorbed (usually under a minute given its non-greasy finish).

In Mauritius's humid mornings, a water-thin humectant-led serum like this one performs well because it draws ambient moisture into the scalp rather than pulling it from deeper layers — the same logic as a hyaluronic-acid skincare serum, applied to scalp rather than face.

1. Shampoo (see Sec 15 for in-catalog options). 2. Towel-dry to slightly damp. 3. Roll on the serum, focusing on areas of visible thinning or the part line. 4. Massage 30-60 seconds. 5. Apply a leave-in hair essence to the strands (not the scalp) if hair length also needs repair — this serum is scalp-targeted, not a strand conditioner.

Night application lets the serum sit undisturbed for hours, which the brand frames as its "intensive care" window — there is no rinsing or pillow-transfer concern once it has absorbed.

Technique: Press-and-roll (do not scrub) — the metal ball both dispenses product and massages; excess friction can irritate rather than help. Required scalp state: clean and towel-dry to slightly damp (not soaking wet, which dilutes the product). Wait time: none mandatory before sleep; allow 1-2 minutes before tying hair up tightly. Hands vs applicator: the built-in roller delivers the product directly; there is no cotton-pad step for this format.

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. Note: this map covers Adilsons' facial skincare stack. This scalp serum is a haircare product and runs as its own separate routine (Sec 6/7 above) alongside — not inside — the facial AM/PM stack below; it does not occupy a facial-skincare "slot."

Global execution 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 outdoors. Amount defaults: toner/essence 5-8 drops, serum 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. Hard cap rule: if the routine pills, stings, or feels heavy, reduce layers, not increase.

AM maximum stack (facial): Rinse/gentle cleanse (optional) → pH-prep toner (optional) → hydrating toner layers (optional) → essence (optional) → mist (optional) → booster/soothing serum (optional) → antioxidant lane (choose one) → pigment-support lane (choose one) → hydration-serum lane (optional) → oil-control lane (choose one) → peptide/repair lane (optional) → eye cream (optional) → moisturizer → optional sealing layer → Sunscreen SPF50+ PA++++ (non-negotiable) → lip SPF (optional). "In AM, prioritize comfort + SPF adherence over stacking. In high humidity, fewer layers often perform better."

PM maximum stack (facial): Micellar pre-cleanse (optional) → oil cleanser (if makeup/SPF) → water cleanser → pH-prep toner (optional) → hydrating toner layers (optional) → essence (optional) → soothing/barrier serum (optional) → anchor active → targeted serum (optional) → moisturizer → sleeping mask (optional) → occlusive seal (optional) → spot treatment (as needed) → lip sleeping mask (optional). "Do not layer retinoids with AHA/BHA in the same night; keep 'one lane' per night."

Lane strictness: One-lane rule — Retinoid OR Exfoliation OR Strong Vitamin C OR Acne-control active per facial routine; barrier/hydration can always accompany. If unsure, default to the safest lane and reduce layers. This scalp serum sits entirely outside this facial lane system.

Rung: Water-thin gel-serum — the lightest tier in a hair routine, comparable to a facial essence in viscosity. Layering rule for scalp/hair: shampoo → towel-dry → this serum (scalp) → leave-in essence/oil (strands, if needed) → styling product. Applying it after a heavier leave-in oil will reduce absorption; apply it first, closest to clean scalp.

Phase compatibility: water-phase, humectant-led formula (Butylene Glycol, Pentylene Glycol, Propylene Glycol, Glycerin, Saccharide Isomerate as the base) with a small oil/lipid fraction (Caprylic/Capric Triglyceride, Ceramide NP, Hydrogenated Lecithin) for scalp-barrier support — this is why it's described as non-greasy despite containing lipids: the oil fraction sits low in the ingredient list.

Shedding fluctuation vs a real reaction: A brief increase in loose hairs in week 2-6 is common with any new scalp routine (increased massage circulation can dislodge hairs already in the shedding phase) and typically resolves. A REACTION — new-area redness, burning, hives, or scalp swelling — means stop immediately rather than "pushing through."

Prerequisites: Before starting, your scalp should be free of active infection, open sores, or diagnosed inflammatory scalp disease (seborrheic dermatitis flares, psoriasis plaques) — treat those first with a dermatologist, then layer this in.

Primary target — diffuse thinning/shedding at the root: the formula combines PDRN (general tissue-support signaling, per ingredient-class research — see Sec 27 for the evidence-tier caveat), Copper Tripeptide-1 and palmitoyl peptides (peptide signaling molecules used broadly in hair-density cosmetics), and SoyAct/Glycine Soja Germ Extract (a supplier-published small human-use study reporting reduced hair loss and improved root volume — see Sec 27).

Secondary benefits: scalp comfort/cooling on application (Menthyl Lactate), mild scalp-barrier lipid support (Ceramide NP, Hydrogenated Lecithin), Rosemary extract for a soothing sensory finish on flake-prone scalps.

What this product cannot do: it cannot regrow hair from follicles that have permanently miniaturized or scarred (end-stage androgenetic alopecia, scarring alopecia); it cannot treat autoimmune alopecia areata; it is not a substitute for a dermatologist-prescribed treatment (minoxidil, finasteride, PRP) if your shedding is significant or rapid.

Cleanse role — primary: SOME BY MI Cica Peptide Anti Hair Loss Derma Scalp Shampoo 285ml (7 in stock) — a sulfate-free, amino-acid-surfactant shampoo built around Centella and peptides, so it cleanses without stripping the barrier this serum is trying to support. Use AM or PM before the serum.

Cleanse role — alternatives: CP-1 Head Spa Cool Mint Shampoo 500ml (5 in stock, gentler general-purpose option) or CP-1 Bright Complex Intense Nourishing Shampoo (Protein) 300ml (42 in stock, protein-focused rather than anti-hair-loss-specific).

Clarify/exfoliate role — primary: GROWUS Sea Salt Therapy Scalp Scaler 250g (1 in stock — verify before ordering) — a weekly physical scalp exfoliant that removes product buildup and sebum before the serum, improving contact with the scalp.

Clarify/exfoliate role — alternative: A'pieu Mint Scalp & Hair Vinegar (8 in stock) — a rinse-off liquid clarifier, gentler than a physical scrub, for weekly buildup removal.

Condition role: CP-1 Ginger Purifying Conditioner 500ml (6 in stock) — apply to lengths only, keeping the scalp free for the serum.

Strand-length complement (different job, not competing): CP-1 3Seconds Hair Fill-Up Ampoule 170ml (13 in stock) — this serum treats the scalp/roots; the ampoule treats mid-length/ends, so the two address different parts of the hair system without overlap.

Pilling/buildup note: using a heavy leave-in hair oil directly under this serum on the scalp (rather than on strands only) can dilute absorption and cause a greasy-root feel — keep oils to the length, serum to the scalp.

Chronic stress elevates cortisol, and sustained cortisol elevation is a recognized trigger for telogen effluvium — a stress-driven shift of hair follicles out of the growth (anagen) phase and into the shedding (telogen) phase, typically visible as diffuse shedding roughly 2-3 months after the stressful period. If your shedding tracks a specific stressful season (exams, a health event, major life change) rather than a slow multi-year thinning, that pattern points toward telogen effluvium rather than androgenetic (pattern) hair loss, and it's often self-resolving once the stressor passes — this serum can support the scalp environment during that window, but it does not address the underlying cortisol trigger.

Permeability: Water-Permeable, with a caveat — the base formula is water-thin and humectant-led with no dominant film-forming/silicone ingredient identified in the sources we could verify, so it should not create an occlusive barrier on the scalp itself. Explanation: for wudu, only partial head-wiping is typically required and this serum's thin, non-waxy finish is unlikely to block water contact with the scalp for that purpose.

For ghusl (full ritual bath): water must reach the scalp/roots, not just the hair surface — if you've applied a generous amount and it hasn't fully absorbed, work water through with your fingers at the roots rather than relying on shampoo alone to confirm penetration.

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

MYTH: "A PDRN or exosome serum will regrow hair the way it works in a clinic." REALITY: The published PDRN evidence for hair density comes from clinician-administered intra-perifollicular injections, not leave-on topical serums — see Sec 27. A cosmetic serum applying the same named ingredient to the skin surface is a genuinely different (and far less studied) delivery route.

MYTH: "More product, more massage, faster results." REALITY: Hair follicles cycle over months, not days; overusing the roller ball more aggressively than recommended does not shorten that biology and can just irritate the scalp.

DIY risk warning: Some online trends pair "exosome" scalp/hair products with home microneedling or derma-rolling for "better absorption." Combining an unregulated cosmetic exosome ingredient with a skin-breaking device is a real infection and inflammation risk and is not something this product is designed or labeled for — use it as directed, on intact skin, with your fingers/the built-in roller only.

Hard water note: Mauritius tap water hardness varies by region; hard water leaves a mineral film on the scalp after rinsing that can sit under this serum and blunt absorption. Following your shampoo with a clarifying rinse (see the A'pieu Hair Vinegar pairing above) periodically helps the serum reach the scalp rather than a mineral film.

*These concentrations and the Exosome ingredient's source come from brand marketing copy relayed via third-party search summaries, not a source we could independently verify by direct fetch — treat them as brand-stated, not lab-confirmed.

Full INCI list (aggregated from third-party retail/ingredient-summary search results — every direct source, including the brand's own site and INCIDecoder, was unreachable from this environment; order below is our best-effort assembly, not a verified label reading):

Water, Butylene Glycol, Pentylene Glycol, Propylene Glycol, Glycerin, Saccharide Isomerate, Caprylic/Capric Triglyceride, Sodium DNA (PDRN), Copper Tripeptide-1, Palmitoyl Tripeptide-1, Palmitoyl Tripeptide-5, Palmitoyl Pentapeptide-4, additional acetyl peptides (individual INCI names not disclosed), Biotin, Panthenol, Ceramide NP, Hydrogenated Lecithin, Lactobacillus Ferment Lysate, Menthyl Lactate, Glycine Soja (Soybean) Germ Extract, Exosome, Rosmarinus Officinalis (Rosemary) Extract. [--- Estimated 1% Line: not placed — see note below ---]

We could not confidently place the estimated 1% line for this product: unlike the sister PDRN Rejuvenating Cream (where the brand disclosed 1,200ppm on-label), no comparable disclosed figure was found for this serum's PDRN, peptide, or Exosome content. Biotin and the labeled peptides sit in the back half of every source we found, which is consistent with — though not proof of — trace/marketing-level ("fairy dusting") inclusion.*

Preservative system: Pentylene Glycol and Caprylic/Capric Triglyceride can contribute mild preservative/anti-microbial function in some formulas, but no dedicated preservative (e.g., a paraben, phenoxyethanol, or 1,2-hexanediol) was identified in the sources we could reach — full ingredient list not publicly disclosed by the brand at the time of writing, so we cannot confirm the complete preservative system.

Fragrance status: Not confirmed either way — no explicit "Fragrance/Parfum" INCI entry surfaced in any source we could reach, but our ingredient list itself is incomplete, so we cannot state "Fragrance-Free" as a verified fact.* Scent description: Marketing/creator content describes a cooling, herbal sensation on application, most plausibly from Menthyl Lactate and Rosemary extract rather than an added perfume. Intensity: Likely low (1-2/5) based on described sensory reports; dissipation not independently confirmed. EU 26 allergen screen: None of the 26 declared in the partial INCI we assembled — but again, this is against an incomplete list, not a full label read. Alcohol disclosure: No drying (ethanol-type) alcohol identified in any source checked.

*Based on incomplete, third-party-aggregated INCI data — patch test advised for fragrance-sensitive individuals given this uncertainty.

Soy allergy: Glycine Soja (Soybean) Germ Extract (SoyAct) is a named ingredient in this formula. If you have a diagnosed soy allergy, patch test before full-scalp use or avoid this product — topical soy-protein reactions are less common than ingestion reactions but are documented.

Fish/marine allergy: PDRN is most commonly manufactured from purified salmon-derived DNA industry-wide (the specific manufacturing process for this SKU's PDRN source was not disclosed anywhere we could verify). Purification generally reduces but does not eliminate residual-protein allergen risk for people with a severe fish/shellfish allergy — if that applies to you, patch test first or consult an allergist.

Prescription interactions: No known interaction with topical/oral minoxidil or finasteride was found in our research, but this is genuinely unstudied in combination — if you are on a prescription hair-loss treatment, mention this serum to your prescribing doctor rather than assuming compatibility.

Halal: Not asserted as Halal-Friendly in this description. PDRN is typically sourced from purified salmon (fish) DNA industry-wide; most scholars consider fish/aquatic-animal-derived ingredients permissible without ritual-slaughter requirements, but we found no formal Halal certification for this SKU and did not independently confirm this specific batch's PDRN source — treat any Halal status as unconfirmed rather than assumed.

Vegan: Not asserted as Vegan-Friendly. Because PDRN is conventionally an animal (fish)-derived ingredient across the industry and this SKU's exact source was not disclosed, we are not applying the standard self-assessed vegan footnote here — this is a genuine, named exception rather than an oversight. If synthetic/fermentation-derived PDRN can be confirmed for this specific batch in future, this status should be revisited.

Cruelty-free: *Brand-stated policy assumed by category norm; not independently certified by Leaping Bunny, PETA, or an equivalent third-party audit for this brand. We found no evidence Dr. Reju-All sells in Mainland China retail, so the China Retail Caveat is not applied.

Microplastic-Free: Yes — no polymer/microplastic ingredients (e.g., Acrylates Crosspolymers used as film-formers) were identified in the sources we could verify for this SKU.

MFDS classification: Not confirmed as a registered Korean Functional Cosmetic (기능성화장품) for hair-loss alleviation — treated as a General Cosmetic pending brand confirmation.

Clinical evidence — PDRN for hair density: The strongest published evidence (a 12-week RCT, ~40 women, weekly intra-perifollicular PDRN injections, mean hair count +17.9%, mean hair thickness +13.5%, p<0.001) is for a clinician-administered injectable protocol — not a leave-on topical serum. No published human trial testing topical PDRN serum for hair density was found. Evidence confidence for this product's density claim: Marketing-Only* until a topical-specific study surfaces.

Clinical evidence — SoyAct: Ingredient-supplier marketing cites in-vitro/ex-vivo dermal papilla cell proliferation data and a small (n=10) human-use test reporting ~27.7% reduced hair loss and ~13.1% improved root volume. This is supplier-generated, not an independent peer-reviewed publication, and the sample size is small. Evidence confidence: Low-Medium.*

Exosome ingredient: Cosmetic "exosome" ingredients are an active regulatory gray zone — the FDA has issued public safety notices stating no exosome product is FDA-approved for any regeneration or hair-restoration claim, and industry commentary notes a lack of standardized sourcing/purity testing across suppliers. This does not mean the ingredient is unsafe as formulated here; it means the evidence and regulatory tier is low, and any "regeneration" framing around it should be read as marketing language, not an approved claim.*

*Clinical evidence discussed above is either in-vitro/ex-vivo, from a different delivery route (injection vs topical), or from a small supplier-sponsored sample. This does not mean the ingredients are ineffective — it means the evidence tier is genuinely lower than "clinically proven," and this description will not claim otherwise.

Fungal Acne / Malassezia Safety: FA-Conditional. Hydrogenated Lecithin and Ceramide NP sit in ester/lipid classes sometimes flagged as moderate-risk on Malassezia-feeding ingredient trackers; we could not independently verify this against folliculitisscout.com or sezia.co directly this run (both were unreachable), so treat this as a caution for anyone managing scalp fungal-acne/seborrheic-dermatitis-adjacent breakouts, not a confirmed unsafe rating.

Assessment: Low. Specifics: the main pilling risk is layering this serum under a heavy leave-in hair oil or wax applied to the scalp (rather than to strands only) — the combination of humectants and a separate oil film can feel tacky or leave a residue. Mitigation: apply this serum to the scalp first, let it fully absorb (under a minute), and keep any oils/styling product to the hair shaft.

Color baseline: Not independently confirmed for this SKU — compare any new bottle against your first one; a notable color shift is a spoilage flag on most gel-serum formats. Storage: Keep away from direct bathroom-shower heat/humidity where possible and out of direct sun; Mauritius's ambient heat can accelerate degradation of peptide actives faster than a cool, dry storage spot would. Spoilage signs: a sour or rancid smell replacing the expected herbal/cooling note, visible separation that doesn't remix, or a texture change to gritty/lumpy. When in doubt, discard.

Patch test: apply a small amount behind the ear or on the inner forearm, wait 24 hours, then begin scalp use if no reaction. 72-hour scalp reset (if reaction occurs): stop ALL scalp actives (this serum, any scalp scrub or clarifying vinegar) for 72 hours, wash only with a gentle shampoo, then reintroduce one product at a time with a 14-day gap. Emergency stop signals: hives, swelling, blistering, persistent burning, or any breathing difficulty — seek emergency care and discontinue immediately.

1. Applying to soaking-wet hair, which dilutes the product before it reaches the scalp. 2. Applying only to the hair shaft instead of the scalp/roots, where the actives are meant to act. 3. Expecting visible change before 8-12 weeks, given how slowly hair follicles cycle. 4. Stacking it with a harsh clarifying shampoo every single wash, which can undercut the barrier support it's providing. 5. Skipping days inconsistently — a shedding-support routine works on cumulative, not one-off, use.

Overuse threshold: more than twice daily doesn't accelerate a biological cycle measured in months and mainly raises irritation risk.

Usage math: 15ml total; a full-scalp application uses a small fraction of a ml per session given the roll-on's controlled dispensing. Lifespan: at once-daily use, a 15ml bottle reasonably lasts several weeks; at twice-daily use as the brand suggests for "intensive care," expect it to run out roughly twice as fast. Reorder timing: because this is the only SKU of its kind in Adilsons' current catalog (see Sec 38), consider reordering as soon as you're down to your last week's worth rather than waiting until empty, to keep the routine uninterrupted.

Thinning at the part line is easy to notice and hard to ignore — a consistent scalp routine, not a single product, is what actually moves the needle over months. This serum is the scalp-treatment anchor; it works biologically as a leave-on, root-focused conditioning step, sitting at the lightest viscosity tier of a hair routine (Sec 9).

AM: 1. Cleanse if needed (Sec 15). 2. Towel-dry. 3. Roll on the serum, full scalp or targeted area. 4. Style. PM: 1. Shampoo. 2. Towel-dry. 3. Roll on the serum, massage 30-60 seconds. 4. Leave-in on strands only if needed (separate product).

If your shedding spiked after a stressful period: pair this serum with stress management, not just more product — see Sec 16B; the underlying trigger (cortisol) isn't addressed topically. If you use a clarifying shampoo weekly: apply this serum the same evening after clarifying, since a freshly stripped scalp absorbs it best (Sec 2). If you're postpartum or recently off hormonal birth control: diffuse shedding in that window is very common and usually self-resolving within 6-12 months regardless of product — use this serum for scalp comfort, but don't expect it to shorten a hormonally-driven timeline. If you're also using a prescription treatment (minoxidil/finasteride): mention this serum to your prescriber; we found no documented conflict, but the combination is genuinely unstudied.

Stock-true bundle — Scalp Reset: GROWUS Sea Salt Therapy Scalp Scaler + A'pieu Mint Scalp & Hair Vinegar + SOME BY MI Cica Peptide Anti Hair Loss Derma Scalp Shampoo + this serum — weekly clarify, gentle daily cleanse, nightly serum.

Stock-true bundle — Daily Density Routine: SOME BY MI Anti Hair Loss Shampoo + this serum + CP-1 Ginger Purifying Conditioner — a simple three-step daily routine.

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

The recommendations above are based on formulation synergy with this 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.

We do not currently carry another dedicated PDRN/exosome hair-density scalp serum — this is, as of 2026-09-19, the only product of this exact type in Adilsons' catalog. If your priority is a broader, rinse-off anti-hair-loss routine rather than a leave-on serum, SOME BY MI Cica Peptide Anti Hair Loss Derma Scalp Shampoo targets the same general concern via a rinse-off, Centella-and-peptide surfactant format.

Choose this serum over the SOME BY MI shampoo if you want a leave-on, root-targeted treatment that stays on the scalp for hours rather than a few minutes of contact time during a wash.

Upgrade triggers (IF/THEN):

If your shampoo alone hasn't changed anything after 8+ weeks, THEN adding this leave-on layer gives the actives real scalp dwell time a wash-off format can't provide. If your shedding is diffuse and recent-onset rather than a slow multi-year pattern, THEN this leave-on step is a reasonable add-on while you also address the likely trigger (Sec 16B). If you already shampoo consistently but want a targeted step for a specific thinning area (part line, crown), THEN a spot-applied leave-on serum reaches that area more precisely than a full-scalp wash product. If you're comfortable trying a newer, less-established ingredient class (PDRN/Exosome/peptides) in exchange for a more concentrated actives layer, THEN this is the better fit than relying on the shampoo's milder Centella/peptide level alone.

Don't upgrade yet if:

Your scalp is currently irritated, flaking, or reactive from another product — resolve that first (Sec 33) before adding a second daily step. You're not ready to commit to a second daily habit beyond washing — consistency matters more than product count here. You have a diagnosed autoimmune (alopecia areata) or scarring hair-loss condition, where neither this serum nor the shampoo is the right first move — see a dermatologist instead. You are pregnant or nursing and want certainty rather than an ingredient class with no pregnancy-specific safety data (Sec 26/33).

If you match the leave-on-treatment need above, this serum is worth adding. If not, the shampoo alone is a reasonable, lower-effort starting point.

This product's PRIMARY function is: leave-on scalp conditioning support for hair density/shedding concerns. You do NOT need this if you already own another leave-on PDRN, peptide, or "growth serum" style scalp treatment you haven't finished — hair-density routines work on months-long consistency, not on stacking multiple similar products at once. Finish your current product before purchasing a second.

Stacking assessment: using this alongside your shampoo and conditioner is Significant Benefit (different pathway — leave-on vs rinse-off). Using it alongside another leave-on scalp "growth" serum is No Benefit (same mechanism, redundant spend and irritation risk).

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.

No brand-specific counterfeit markers have been documented for this SKU yet. As a general check: confirm the roll-on's metal-ball applicator moves smoothly and the seal is intact on first use, and cross-check the batch code on your unit against the Authenticity page's guidance if anything looks off.

Dr. Reju-All positions itself as a Korean derma/pharmacy-style brand built around PDRN skin- and tissue-regeneration technology, distinct from the unrelated injectable-aesthetics brand "Rejuran" — the similar name appears coincidental, with no evidence of affiliation found. This Hair Density Scalp Serum is the brand's haircare line extension, applying its signature PDRN alongside newer additions (a labeled Exosome ingredient, SoyAct) to the scalp-care category. We could not verify whether the brand's haircare formulas are developed in-house or via a contract manufacturer.

Community reviews for this specific product were not yet independently verifiable in our research at the time of writing. Every retail platform likely to carry reader reviews (Amazon, YesStyle, Skinsort) returned a network access block in this environment, so we could see listing titles and marketing copy via search snippets but not read or verify actual customer review text. A search-summary surfaced one paraphrased line attributing a positive comparison to "an esthetician," but because we could not read the original review ourselves, we are not presenting it as a confirmed quote here.

We would rather tell you plainly that this section is currently thin than invent plausible-sounding reviews to fill it.

Sustainability: Check local recycling guidance for the bottle material; the product is not refillable.

Will this regrow hair that's already gone? No — it's designed to support the scalp environment for existing, active follicles, not to reverse follicles that have already permanently miniaturized or scarred.

How long before I see results? Realistically 8-12 weeks minimum, because hair follicles cycle over months; anything claimed faster should be treated skeptically.

Can men and women both use it? Yes — nothing in the formula or marketing is sex-specific.

Can I use it with minoxidil or finasteride? No documented conflict was found, but the combination is genuinely unstudied — mention it to your prescribing doctor.

Is it safe during pregnancy? It doesn't contain any of the standard pregnancy-flagged ingredients (retinoids, salicylic acid, hydroquinone, chemical UV filters), but PDRN, peptides, and the Exosome ingredient have no published pregnancy-specific safety data either way — if you want certainty rather than an unstudied ingredient, wait until after pregnancy/nursing.

PDRN

Polydeoxyribonucleotide — a DNA-fragment ingredient studied for tissue-repair signaling, most established via clinical injection rather than topical application.

Exosome

A small cell-signaling vesicle; as a cosmetic ingredient it is not standardized or FDA-approved for regeneration claims.

Peptide

A short chain of amino acids used in cosmetics to signal specific cell activity, such as the copper and palmitoyl peptides in this formula.

Telogen effluvium

Diffuse hair shedding triggered by a stressor (illness, major stress, hormonal shift), usually temporary.

Anagen

The active growth phase of the hair follicle cycle.

SoyAct

A branded Glycine Soja (soybean) germ extract ingredient marketed for hair-root strengthening.

MFDS

Korea's Ministry of Food and Drug Safety, which regulates Functional Cosmetic claims.

Androgenetic alopecia

Pattern hair loss driven by genetics and androgen sensitivity, distinct from stress-driven shedding.

PAO

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

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: Someone with diffuse thinning or recent-onset shedding who wants a low-effort, non-greasy leave-on scalp step to add to an existing hair-wash routine, and who understands this is a supportive cosmetic, not a medical treatment.

Key benefits: Genuinely lightweight, fast-absorbing format suited to Mauritius humidity; combines several real, named ingredient classes rather than one vague blend; easy, low-effort roll-on application with a built-in scalp massage tool.

Keep in mind: The headline "hair density" claim rests on evidence from injectable PDRN studies, not this topical format, and on a small supplier-sponsored study for SoyAct — treat expectations accordingly. The "Exosome" ingredient's exact source is undisclosed, and this is currently the only product of its kind in Adilsons' catalog, so there's no in-house alternative to compare it against yet.

Assessment: Consult Oncologist before use.

This formula is built around ingredients whose entire proposed mechanism is stimulating cell signaling and proliferation pathways (PDRN's tissue-repair signaling, peptide growth-factor-adjacent activity, and a labeled Exosome ingredient with an undisclosed but signaling-related mechanism). That is precisely the category of biological activity oncology teams are typically cautious about introducing near active cancer treatment, independent of whether the product is applied to the face or scalp.

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

Impact: Likely Supportive/Neutral. This formula includes Lactobacillus Ferment Lysate, a postbiotic — the beneficial metabolites left behind by fermentation, not live bacteria. You are not applying live probiotics to your scalp; the ferment filtrate is included for its conditioning/signaling properties, and any mild fermented note some users report is a normal sign of genuine ferment content, not spoilage.

Hard water interaction: Since this serum is applied straight after a scalp rinse, mineral residue from Mauritius's harder-water regions can sit between the scalp and the serum, reducing how well it's absorbed — an occasional clarifying rinse (Sec 15/22) helps the serum reach the scalp itself.

AC/humidity swing interaction: The formula's humectant base (Glycerin, Butylene Glycol, Propylene Glycol) draws moisture from the surrounding air under normal humidity, but in long air-conditioned stretches with low ambient humidity, humectants can instead pull moisture from the scalp itself — if you live or work in AC most of the day, don't rely on this serum alone for scalp hydration; a barrier-supportive leave-in may help more in that specific context.