COS DE BAHA Salicylic Acid 4% Serum 30ml

Values You Can Trust: Halal-Friendly* / Vegan-Friendly* / Cruelty-Free / 100% Authentic Guarantee

Self-assessed by Adilsons based on available ingredient data (no ethanol/denat.; no haram animal-derived ingredients detected). / Self-assessed by Adilsons based on available ingredient data (no animal-derived ingredients detected).

If you struggle with persistent breakouts and clogged pores, this high-potency formula offers targeted relief.

Contains 4% Salicylic Acid (BHA) to penetrate deep inside pores, dissolving trapped oil and dead skin cells. Formulated for oily, acne-prone, and textured skin types looking for a stronger chemical exfoliant.

1) Cleanser — quick wash to create a clean base[cite: 1].

2) COS DE BAHA Salicylic Acid 4% Serum — apply 3 to 4 drops to dry skin 1 to 3 times per week at night[cite: 1].

3) Sunscreen (AM) / Moisturiser (PM) — seal and protect[cite: 1].

Note: Already own a similar step? Finish that first (substitute, don't stack).

Minimalist (3–4 steps): 1) Gentle Cleanser → 2) Hydrating Toner or Essence (optional) → 3) Moisturiser (if needed) → 4) Sunscreen SPF 30+.

Optional: Targeted antioxidant or hydrating serum if managing surface dehydration. Wait 30 to 60 seconds between watery layers and 1 to 2 minutes before applying sunscreen.

Minimalist (3 steps): 1) Cleanser (double-cleanse if wearing waterproof sunscreen or makeup) → 2) COS DE BAHA Salicylic Acid 4% Serum (1–3×/week max) → 3) Moisturiser to lock in hydration.

Optional: Soothing barrier cream on non-acid nights. Follow the thinnest-to-thickest texture rule.

Daily Use — PM Only: Apply 3 to 4 drops to clean, dry skin. Avoid the immediate eye area and lips. Start slowly at 1 to 2 nights per week to build tolerance, as 4% is a high concentration.

Dosage quick-table: Serum/Essence: 3–4 drops for face and neck.

If-This / Then-That: Tingling is normal initially, but persistent burning means you should rinse off and scale back. Never layer with strong retinoids on the same night.

Watchouts: Pilling can happen if layered over heavy silicones; sensitivity occurs if stacked with other acids. Safety: Avoid broken skin. Discontinue if a burning rash develops.

Example week (PM focus): Mon COS DE BAHA Salicylic Acid 4% Serum · Tue Soothing night (no strong actives) · Wed Hydrating recovery night · Thu COS DE BAHA Salicylic Acid 4% Serum · Fri Soothing night · Sat Off or barrier repair · Sun Soothing night.

Rules: Limit BHA use to 1–3 times per week. Do not combine with retinoids or physical scrubs on the same evening.

Mauritius note: High humidity increases skin vulnerability to UV; strict daily morning sunscreen use is mandatory when using chemical exfoliants.

Immediate: Skin may feel slightly tighter or smoother; minor purging can occur in congested areas within the first 1–2 weeks. 2–4 weeks: Noticeable reduction in blackheads, surface oil, and active blemishes. 4–8+ weeks: Clearer pores, refined skin texture, and a more balanced complexion.

Safer than harsh physical scrubs or DIY lemon-and-sugar mixtures that cause micro-tears and worsen post-inflammatory hyperpigmentation (PIH). Opt for lab-formulated BHA that targets oil inside the pore safely.

Works with: Hydrating toners, panthenol, centella asiatica, and ceramides to support the skin barrier. Use carefully: Niacinamide or vitamin C (alternate times of day to avoid over-stimulation). Avoid on same night: Retinoids, physical scrubs, and other direct acids (AHAs).

Best suited for oily, combination, acne-prone, and congested skin types. Sensitive or dry skin types should patch-test rigorously and limit use to once a week due to the 4% concentration strength.

Enlarged pores, blackheads, whiteheads, excess sebum production, uneven skin texture, and mild acne breakouts.

Official Korean Name: 코스더바하 살리실산 4% 세럼. Formulated for global distribution with high-purity active ingredients. Shelf life: 36 months from manufacture, 12 months post-opening (PAO). Country of Manufacture: South Korea.

Halal Status: Halal-Friendly (ingredient review; no alcohol/haram animal ingredients detected). Vegan Status: Vegan-Friendly (no animal-derived ingredients identified in INCI). Animal Testing Policy: Brand states cruelty-free practices.

Self-assessed by Adilsons based on available ingredient data (no ethanol/denat.; no haram animal-derived ingredients detected). / Self-assessed by Adilsons based on available ingredient data (no animal-derived ingredients detected).

Standard cosmetic formulation containing 4% Salicylic Acid. Disclaimer: This product is formulated for cosmetic improvement of pore clarity and texture, not for the medical treatment of severe cystic acne.

Key Actives: Salicylic Acid (4%) for deep pore exfoliation, Niacinamide and botanical extracts for soothing support. Full INCI details follow standard manufacturer cosmetic compliance. Formulated without added artificial fragrances, parabens, or sulfates.

Fragrance-free formula with no added artificial scents. EU allergens: None declared by brand; full INCI verification recommended via patch test if you have extreme botanical sensitivities.

Based on brand-declared INCI; trace fragrance components may persist from botanicals; patch test advised.

Perform a patch test by applying a pea-sized amount to the inner jawline or behind the ear for 24 to 48 hours before full facial application. Discontinue use immediately if persistent stinging, redness, or blistering occurs.

Clear, lightweight liquid serum texture that absorbs quickly with minimal tackiness. pH is optimized around 3.3 to 3.8 to ensure free-acid delivery of salicylic acid for effective pore penetration.

Issue: Mild peeling or dryness. Fix: Reduce usage frequency to once weekly and increase hydration steps with a ceramide-rich moisturiser. Issue: Purging breakouts. Fix: Normal for the first 2 weeks as deep micro-comedones clear out; persist gently if irritation is manageable.

Ideal for humid tropical summers to control excess sebum and prevent sweat-induced pore congestion. Ensure strict daily application of a broad-spectrum sunscreen due to heightened UV exposure levels in Mauritius.

Sourced directly from authorized Korean distribution channels via Adilsons. Features original manufacturer batch codes and tamper-evident packaging. Contact Adilsons via WhatsApp at +230 5 778 2336 for verification assistance.

Formulated on established dermatological principles regarding Beta Hydroxy Acid (Salicylic Acid) efficacy in lipophilic pore clearing and sebum regulation. Claims based on standard cosmetic ingredient rationale.

Brand claim—no public dataset available for independent verification.

Manufactured under cruelty-free guidelines with clean processing standards designed to minimize environmental impact and unnecessary packaging waste.

30ml bottle providing approximately 90 to 120 single uses when applying 3–4 drops 2–3 times weekly. Estimated reorder cadence is every 3 to 4 months depending on personal usage frequency.

Starter Essentials (AM, Mauritius-friendly)

- COSRX LOW pH GOOD MORNING GEL CLEANSER 150ML — gently cleanses without stripping natural moisture[cite: 1]

- COS DE BAHA Salicylic Acid 4% Serum 30ml — primary pore-clarifying treatment[cite: 1]

- SKIN1004 MADAGASCAR CENTELLA HYALU-CICA WATER-FIT SUN SERUM 50ML — protects exfoliated skin from UV rays[cite: 1]

Targeted Results (PM focus)

- Anua Heartleaf 77% Soothing Toner 250ml — calms redness and preps skin[cite: 1]

- COS DE BAHA Salicylic Acid 4% Serum 30ml — clears trapped pore debris[cite: 1]

- SKIN1004 MADAGASCAR CENTELLA SOOTHING CREAM 75ML — locks in barrier hydration[cite: 1]

Compatibility note: Avoid using strong acids and strong retinoids on the same night. If a bundle contains a retinoid, do not include an exfoliant in that same bundle.

This serum is an excellent choice if your primary concerns are enlarged pores, blackheads, and oily congestion.

- Gentler Alternative: Anua BHA 2% Gentle Exfoliating Toner 150ml — Choose this if you have sensitive skin and require a lower 2% BHA concentration for daily or frequent use — Why: Offers milder exfoliation with soothing heartleaf extract.

- Spot Treatment Alternative: SKIN1004 MADAGASCAR CENTELLA TEA-TRICA SPOT CREAM 20ML — Choose this if you prefer targeting individual active pimples rather than full-face exfoliation — Why: Centella and tea tree focus directly on localized blemishes.

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

Packaged in a glass dropper bottle for precise dispensing and product integrity. Recycle glass container in local Mauritian recycling streams after rinsing. Store away from direct sunlight and high heat.

"Noticeable clearing of blackheads around my nose within three weeks, though I had to start slowly to avoid dryness." - Reddit, r/AsianBeauty (thread 2025-05)[cite: 1]. Anecdote/Aggregated sentiment.

COS DE BAHA focuses on ingredient-transparent, highly effective formulations that prioritize active concentrations without unnecessary fillers or fragrances.

BHA (Beta Hydroxy Acid): An oil-soluble chemical exfoliant like salicylic acid that penetrates inside pores to dissolve sebum and dead skin cells.

MFDS: Ministry of Food and Drug Safety, the regulatory body for cosmetics in South Korea.

PAO: Period After Opening, indicating how long a product remains safe to use once unsealed.

Adilsons | +230 5 778 2336 | info@adilsons.mu

Rigorous curation focusing on authentic K-beauty products suited for the Mauritian climate, backed by dedicated customer support.

Can I use this every day? Due to the 4% strength, start 1–2 times a week and work up only if your skin tolerates it without irritation. Can I use it with Vitamin C? Alternate them between morning and night to minimize potential sensitivity.

Best For: Oily and acne-prone skin needing intensive pore decongestion. Key Benefits: Clears blackheads, refines texture, regulates sebum. Keep in Mind: High 4% concentration requires careful patch testing and a gradual ramp-up phase.

Coverage: Island-wide delivery (Mauritius).

Processing & 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’ll 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.