IUNIK Azelaic Acid Lacto PDRN Serum 40ml

100% Genuine (Adilsons policy) • Vegan-Friendly*

Persistent facial redness and rough, congested texture often get treated as two separate problems requiring two separate products — azelaic acid is one of the few actives that genuinely addresses both through the same anti-inflammatory, cell-turnover-normalizing mechanism.

Pros: well-corroborated 12% concentration, PDRN and ceramide barrier support built in, vegan and fragrance-free per brand claim, works on both redness and texture. Caveats: full ordered INCI was not independently confirmed this run (only named actives corroborated); this is a very recently listed SKU with no independent third-party reviews yet; azelaic acid at 12% needs a barrier-ready starting point, not sensitized skin.

Classification: RED — not recommended for under 16. 12% Azelaic Acid is a real clinical-strength active targeting inflammatory redness and pore-lining cell turnover, biological processes that prepubescent and early-teen skin generally hasn't developed the same acne/rosacea-adjacent presentation for yet.

Safe alternative: IUNIK Tea Tree Relief Serum (verified active in the Shopify catalog, only 2 units left) offers a gentler, acid-free approach to redness and breakouts more appropriate for younger or beginner skin.

Step 1 (When): PM to start, 2-3 nights per week. Step 2 (How much): 2-3 drops via the dropper, or one full dropper. Step 3 (How): gently pat/press into skin after cleansing and toning; 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 → 2. Toner → 3. Azelaic Acid Lacto PDRN Serum (once tolerated; optional in AM) → 4. Moisturizer → 5. Sunscreen SPF50+ PA++++ (non-negotiable). Azelaic acid is not strongly photosensitizing the way retinoids are, but daily SPF is still mandatory whenever you're running an active-strength serum, to protect the skin barrier you're actively working on.

1. Cleanser(s) → 2. Toner → 3. Azelaic Acid Lacto PDRN Serum (anchor step) → 4. Moisturizer. In the 4-night skin-cycling framework, this sits in the Exfoliation/Active lane — pair its nights with Recovery nights (barrier-only) rather than stacking it with a separate strong acid or retinoid the same evening.

Technique: pat/press, do not rub — friction increases irritation risk with any active-acid serum. Required skin state: either damp or dry is fine; if you find it stings on damp skin, switch to fully dry skin. Wait time: allow 1-3 minutes before moisturizer to let the acid work at its formulated pH before diluting it.

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 runs thinnest to thickest, water-phase before oil-phase, treatments before seals. Wait-time defaults: watery layers 10-20s, serum layers 30-60s, pH-dependent acids 10-20 min if layering (splitting AM/PM is safer), 10-15 min before sunscreen. Amount defaults: toner 5-8 drops, serum 2-3 drops, moisturizer 1-2 peas, sunscreen 2-finger rule. Retinoids/acids go on fully dry skin if sensitive. If the routine pills, stings, or feels heavy, reduce layers, not increase.

AM Maximum Stack: Rinse/Gentle Cleanse (optional) → pH-Prep Toner (optional) → Hydrating Toner Layers (optional) → Essence (optional) → Booster/Soothing Serum (optional) → Antioxidant Lane (choose one) → Pigment/Redness Support Lane (this product, if AM-tolerated) → Hydration Serum Lane (optional) → Peptide/Repair Lane (optional) → Moisturizer → Sunscreen SPF50+ PA++++ (non-negotiable).

PM Maximum Stack: Oil Cleanser/Balm (if wearing SPF/makeup) → Water Cleanser → pH-Prep Toner (optional) → Hydrating Toner Layers (optional) → Soothing/Barrier Serum (optional) → Anchor Product (this serum) → Moisturizer → Occlusive Seal (optional, dry/AC nights). Do not layer retinoids with AHA/BHA/azelaic acid in the same night; keep "one lane" per night.

One-lane rule: Retinoid OR Exfoliation/Acid OR Strong Vitamin C OR Acne-control active per routine; barrier/hydration can always accompany. If unsure, default to the safest lane and reduce layers.

This is a lightweight, transparent water-phase serum — apply after toner/essence and before moisturizer. Its water-phase position means it should not be layered under an oil or occlusive product until it has had its 1-3 minute wait time to work at its formulated pH.

Rest days: at least 2-3 nights per week barrier-only while building tolerance. Overuse warning: using it nightly from day one does NOT produce faster results — it produces barrier damage and can worsen the redness you're trying to treat.

Purging vs. Reaction: purging occurs in your usual breakout areas, is surface-level, and resolves in 4-6 weeks. A reaction occurs in new areas, involves burning/swelling/hives, and worsens without improvement — stop immediately if this happens.

Prerequisites: before starting this product, your routine MUST already include a gentle cleanser, a basic moisturizer, and a daily SPF habit. Without these foundations, this product causes more harm than benefit.

Barrier index gate: if your skin stings on moisturizer, feels tight within 30 minutes of cleansing, or shows visible flaking, your barrier is below threshold. Start with IUNIK Centella Calming Gel Cream alone for 1-2 weeks first.

Persistent redness: Azelaic Acid reduces inflammatory mediators associated with visible facial redness. Uneven/rough texture and mild congestion: normalizes keratinocyte turnover inside the pore lining, reducing the buildup that causes bumpy texture. Secondary benefits: Lactobacillus PDRN and Beta-Glucan support barrier recovery alongside the active.

What this product cannot do: it cannot resolve deep cystic acne or diagnosed rosacea on its own — those need dermatologist-level care. It also cannot "erase" broken capillaries (that's a laser-treatment concern, not a topical one) — it reduces the inflammatory redness layered on top of them.

Toner: primary — IUNIK Tea Tree Relief Toner. Alternatives: Anua Peach 77% Niacin Essence Toner, JUMISO All Day Vitamin Glow Boost Facial Toner, APLB Glutathione Niacinamide Facial Toner (only 1 unit left).

Moisturizer: primary — IUNIK Centella Calming Gel Cream. Alternatives: IUNIK Beta Glucan Daily Moisture Cream, IUNIK Beta Glucan 3X Barrier Cream (only 2 units left), Anua Birch Moisture Boosting Cream.

Sunscreen: primary — Beauty of Joseon Relief Sun: Rice + Probiotics. Alternatives: SKIN1004 Hyalu-Cica Water-Fit Sun Serum, Anua Heartleaf Silky Moisture Sun Cream, IUNIK Beta Glucan Barrier Sunscreen (only 3 units left).

This is a conflict-solver for ACTIVE ingredients. If you run multiple actives, use these rules to avoid irritation, deactivation, and barrier damage.

× Retinoids (Retinol/Retinal/Tretinoin/Adapalene): avoid combining the same night while you're still building tolerance to both. Instead: alternate nights, or use skin cycling (Night 1 Azelaic → Night 2 Retinoid → Nights 3-4 Recovery).

× AHA/BHA exfoliants: avoid stacking two separate acid products the same night — the combined acid load increases irritation risk without proportionally better results. Instead: alternate nights (azelaic 3x/week, AHA/BHA on separate nights).

× L-Ascorbic Acid (pure Vitamin C): don't layer in the same routine while both are new to your skin. Instead: Vitamin C AM, this serum PM.

Universal rule: if you break a rule, don't "push through" irritation — reduce frequency, split AM/PM, or alternate nights. If moisturizer stings or skin feels tight within 30 minutes of cleansing, pause all actives and run barrier-only for 3-7 days.

Scheduling Template — Alternate-Night Protocol: Mon/Wed/Fri this serum; Tue/Sat other active (if any); Thu/Sun Recovery (no actives). Do not layer retinoids with AHA/BHA/azelaic acid in the same night; keep "one lane" per night.

Pre-period breakouts happen partly because progesterone causes the pore lining to physically swell, narrowing the opening and trapping sebum beneath — azelaic acid's pore-lining normalizing action is relevant here, though it works over weeks, not days.

Mauritius tap water hardness varies by region; hard water residue on top of an already-active-treated face can increase perceived tightness — a pH-adjusting toner beforehand helps.

*Most published PDRN research uses injectable forms; PDRN is a large molecule with limited topical skin penetration, so topical effects are likely milder than injectable data would suggest.

A full ordered INCI list for this exact SKU was not confirmed via this run's WebSearch aggregation — sources describe "33 ingredients including vitamin E, ceramides, and azelaic acid" and name the actives above, but not the complete ordered list. Full ingredient list not publicly disclosed in complete order by the brand at the time of writing — only the named actives above are stated as fact.

Brand states "free from artificial colors and fragrances" — treated as fragrance-free per brand claim, though this was not independently confirmed against a full ordered INCI this run. No EU26 allergen assessment can be completed without the full INCI; treated as unconfirmed rather than asserted "none detected."

If you are currently using prescription tretinoin, adapalene, or isotretinoin, consult your dermatologist before combining with this product — combining multiple active-acid/retinoid treatments increases irritation risk without necessarily improving results faster.

Halal: *Self-assessed by Adilsons based on available brand-disclosed ingredient information (full ordered INCI not independently confirmed this run). No porcine-derived ingredients or haram animal-derived ingredients were identified among the named actives. This is NOT a formal Halal certification. Muslims with stricter requirements should consult their own scholars.

Vegan: brand states this is a vegan serum. *Self-assessed by Adilsons based on available ingredient information; not independently certified by The Vegan Society or equivalent body.

Cruelty-Free: *Brand-stated policy. Not independently certified by Leaping Bunny, PETA, or equivalent third-party audit.

MFDS Classification: Not confirmed — Azelaic Acid at 12% sits close to prescription-strength ranges (15-20% typical prescription; 10% and under common in OTC formulas), but this SKU's own registration status was not found. Evidence confidence: Medium-High for azelaic acid's general anti-inflammatory/anti-redness/texture-normalizing mechanism (well-published ingredient-class evidence); Low for PDRN's topical efficacy specifically (most PDRN research is injectable); Marketing-Only* for "Clinically tested" with no disclosed protocol.

Assessment: Low — lightweight water-based serums like this generally don't pill unless layered under a very heavy silicone-based product without a wait period.

Fresh product should be clear/transparent per the brand's own texture description; any yellowing, cloudiness, or off smell signals degradation. Store away from direct heat and sunlight. Discard if separation occurs and won't remix, or if the dropper tip shows crystallization.

Patch test on the inner forearm for 24 hours, then behind the ear for 24 hours, before full facial use — mandatory for any 12%-strength active. If adverse reaction occurs: STOP ALL ACTIVES. For 72 hours, use ONLY gentle cleanser + plain moisturizer + mineral SPF. No acids, retinoids, Vitamin C, exfoliants, or essential oils. After 72 hours, reintroduce ONE product per 14 days. Emergency stop signals: hives, swelling, blistering, persistent burning, breathing difficulty — seek care immediately.

1) Starting nightly instead of 2-3x/week — this is the single most common cause of azelaic-acid irritation complaints. 2) Skipping SPF because "it's not a retinoid" — any active-strength product warrants daily SPF while your barrier adjusts. 3) Combining it with a separate strong acid or retinoid the same night before building tolerance to either. 4) Expecting fast results — azelaic acid works over 8-16 weeks, not days. 5) Applying to a compromised barrier expecting it to help redness faster — it will worsen it instead.

At 2-3 drops per use, 2-3 times weekly building up to nightly if tolerated, a 40ml bottle typically lasts 2-3 months. Using it more often than your skin tolerates does not speed up results — it shortens the bottle's life and increases irritation risk. Reorder about two weeks before you expect to run out.

This serum is the anchor treatment step of a redness/texture-focused routine — everything else supports its tolerance. PM: cleanse → toner → this serum → moisturizer. AM (once tolerated): cleanse → toner → this serum (optional) → moisturizer → SPF.

If your skin currently stings when you cleanse, do not start this serum yet — repair barrier first with a plain moisturizer routine for 1-2 weeks. If you're also using a Vitamin C serum, keep them on separate routines (Vitamin C AM, this serum PM) rather than layering both fresh actives together.

Stock-true bundle: this serum + IUNIK Tea Tree Relief Toner + IUNIK Centella Calming Gel Cream forms a same-brand, redness-focused 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.

If 12% Azelaic Acid feels too strong to start, IUNIK Tea Tree Relief Serum (only 2 units left) targets the same redness/breakout concern without an acid — a gentler, non-active starting point.

Choose Azelaic Acid Lacto PDRN Serum over the Tea Tree Relief Serum if you need clinically-backed active strength: azelaic acid's anti-inflammatory and cell-turnover-normalizing mechanism has a substantially larger published evidence base than a botanical-only calming serum.

If your barrier is intact and you've been using barrier-support products for 2+ weeks without irritation, this is worth upgrading to. If your skin is currently reactive, over-exfoliated, or new to actives, do not upgrade yet — repair barrier first with the gentler alternative.

Don't switch if you're already using another azelaic-acid or strong-acid product successfully — running two same-mechanism actives adds risk without added benefit.

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

Quick version: Week 1-2: introduce alone, 2-3x/week, monitor for irritation. Week 3-4: increase to every-other-night if stable. Week 5+: add one support product only if needed. If irritation occurs at any point, follow the 72-Hour Barrier Reset above rather than repeating onboarding from scratch.

This product must be introduced as the ONLY new product. Wait 14 days before adding anything else.

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.

IUNIK's own official channels describe a brand-wide "HiddenTag Global" physical authentication tag on packaging, verifiable via the HiddenTag Global app — check for this tag on your unit.

IUNIK positions itself as an online-first, ingredient-led Korean skincare brand. This serum is part of a newly launched trio pairing a named clinical active (Azelaic Acid here) with a Lactobacillus-ferment-derived PDRN, extending the brand's barrier-support philosophy into active-treatment territory.

Community reviews for this specific product were not yet available in our research at the time of writing — this is a very recently listed SKU on Adilsons (added 2026-09-18). We did not extend reviews of other IUNIK products to this one, since that would misrepresent what has actually been said about this exact formula.

Is 12% Azelaic Acid too strong for beginners? It can be if you start nightly — beginning at 2-3x/week and building up avoids most irritation.

Can I use this if I'm pregnant? Azelaic acid is not on this skill's list of pregnancy-contraindicated ingredients and is commonly considered pregnancy-compatible in dermatology literature, but always confirm with your own doctor before starting any new active during pregnancy.

Will it lighten dark spots? Azelaic acid has some evidence for hyperpigmentation, though its primary, best-evidenced use here is redness and texture, not spot-fading specifically.

Does it replace my moisturizer? No — it's a treatment serum, applied before, not instead of, moisturizer.

Is the full ingredient list available? The complete ordered INCI for this exact SKU was not independently confirmed this run; only the named actives are stated as fact here.

Azelaic Acid

A naturally-occurring dicarboxylic acid used topically for redness, texture, and mild pigmentation.

PDRN

Polydeoxyribonucleotide, a DNA-fragment ingredient marketed for regeneration/barrier support.

Barrier

The skin's outermost protective layer; when compromised, it stings, flakes, or feels tight.

Purging

A temporary increase in breakouts in usual areas as an active accelerates turnover; resolves in weeks.

Skin cycling

Alternating active nights with recovery nights to manage irritation.

INCI

The standardized international naming system for cosmetic ingredients.

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: barrier-healthy skin with persistent redness, uneven texture, or mild congestion, ready for a real clinical-strength active. Key benefits: well-corroborated 12% Azelaic Acid, PDRN and ceramide barrier support built in, vegan and brand-stated fragrance-free, dual redness-and-texture mechanism. Keep in mind: not for barrier-compromised or under-16 skin; needs a gradual introduction and daily SPF; the full ordered INCI and independent reviews for this very recent SKU are not yet available.