COS DE BAHA Azelaic Acid 5% 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).

Designed for tropical climates like Mauritius, this lightweight serum helps soothe visible redness and smooth uneven texture without heavy oils or pore-clogging residues.

If stubborn post-blemish marks or persistent redness make finding a gentle daily treatment frustrating, this 5% azelaic acid serum offers a well-tolerated, soothing solution.

• Core Actives: Azelaic Acid (5%), Niacinamide, Panthenol.
• Skin Types: Sensitive, acne-prone, rosacea-prone, and uneven skin tones.
• Key Benefit: Calms visible redness, targets post-inflammatory hyperpigmentation (PIH), and refines skin texture.
• Texture & Finish: Lightweight, fast-absorbing aqueous serum with a natural finish.

1. Cleanser — quick wash; clean base[cite: 1].
2. COS DE BAHA Azelaic Acid 5% Serum 30ml — apply 2 to 3 drops to clean, dry skin[cite: 1].
3. Sunscreen (AM) / Moisturiser (PM) — seal & 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; adds slip) → 3) COS DE BAHA Azelaic Acid 5% Serum 30ml[cite: 1] → 4) Sunscreen SPF 30+

Optional: Targeted antioxidant serum if fading extra spots; light moisturiser if skin feels tight under air conditioning.

Wait times: 30–60 seconds between watery layers; 1–2 minutes before sunscreen or makeup.

Minimalist (3 steps): 1) Cleanser (double-cleanse if wearing waterproof sunscreen or makeup: oil cleanser first, then water-based cleanser) → 2) COS DE BAHA Azelaic Acid 5% Serum 30ml[cite: 1] → 3) Moisturiser or facial cream to lock in hydration.

Optional: Chemical exfoliant 1–3 times per week on alternating nights (do not use strong exfoliating acids on the exact same night as azelaic acid when first starting).

Texture rule: apply products from thinnest to thickest consistency.

Daily Use — AM/PM:

• Amount: 2–3 drops for the entire face.
• Apply to: Face and neck, avoiding the immediate eye area.
• Method: Smooth gently and pat lightly until fully absorbed.
• Wait times: 30–60s between watery layers; 1–2 min before sunscreen or makeup.
• Frequency: Start once daily (preferably PM) for the first week; increase to AM and PM as tolerance builds.

Dosage quick-table (Serum/Essence): 2–3 drops (or 1–2 pumps).

If-This / Then-That:

• Very oily T-zone? Apply a thin layer and skip daytime moisturiser if your sunscreen is sufficiently hydrating.
• Very dry or exposed to air conditioning? Layer over a hydrating toner and follow with a nourishing cream.
• Sensitive or easily reactive? Start by using it every other night for the first week.
• Under makeup? Use a thin layer, wait 2 minutes, then apply sunscreen or primer to prevent pilling.

Watchouts: Pilling occurs if too much product is applied or wait times are skipped; sensitivity happens if stacked with multiple strong actives too quickly.

Safety: Avoid broken or freshly irritated skin. Discontinue use if a burning rash develops. Teens should stick to a basic cleanser, moisturiser, and sunscreen routine unless guided by a clinician.

Example week (PM focus for active introduction):

• Monday: COS DE BAHA Azelaic Acid 5% Serum[cite: 1]
• Tuesday: Soothing night (hydration only, no strong actives)
• Wednesday: COS DE BAHA Azelaic Acid 5% Serum[cite: 1]
• Thursday: Soothing night (hydration only)
• Friday: COS DE BAHA Azelaic Acid 5% Serum[cite: 1]
• Saturday: Soothing night or barrier repair cream
• Sunday: Soothing night (hydration only)

Rules: Introduce active serums slowly. Do not combine high-strength physical scrubs or potent AHAs/BHAs on the same night when your skin is adjusting.

Mauritius climate note: In high humidity, keep skincare layers thin; a hydrating sunscreen often replaces daytime moisturiser entirely.

Safety: If localized stinging or irritation occurs, reduce application frequency to twice a week and focus on barrier-supporting products.

• Immediate: Skin feels comforted with a lightweight, non-greasy finish and reduced surface tension.
• 2–4 weeks: Visible reduction in surface redness, calmer active blemishes, and smoother skin texture.
• 4–8+ weeks: Gradual fading of post-inflammatory hyperpigmentation (PIH) and a more even, clarified complexion overall.

• Exfoliants & Brighteners: Safer and more predictable than harsh DIY lemon juice or abrasive home scrubs that disrupt the skin barrier and worsen dark spots.
• Redness Care: Targeted azelaic acid works directly on inflammatory pathways rather than relying on heavy pore-clogging camouflage makeup.

Works well with: Hyaluronic acid, niacinamide, centella asiatica, ceramides, and daily broad-spectrum sunscreens.

Use carefully: High-percentage chemical exfoliants (glycolic or salicylic acid) and retinoids; introduce them on alternate nights to prevent over-exfoliation.

Avoid on: Broken skin, open wounds, or active contact dermatitis patches.

• Sensitive Skin: Highly compatible due to azelaic acid’s gentle anti-inflammatory properties.
• Oily & Acne-Prone Skin: Excellent; helps prevent pore congestion and calms red breakout marks.
• Combination Skin: Ideal for balancing T-zone oiliness and dry cheeks when paired with a smart moisturiser.
• Dry Skin: Works wonderfully when sandwiched between hydrating toners and a rich cream.

• Persistent facial redness and flushing
• Post-inflammatory hyperpigmentation (PIH) from past blemishes
• Uneven skin texture and rough patches
• Mild acne and blemish marks

• Official Korean Name (Romanized): Cos de Baha Azelaic Acid 5 Serum[cite: 1]
• Version/Reformulation: Current standard global formulation featuring 5% azelaic acid and soothing botanical co-ingredients.
• Shelf Life/PAO: 12 months after opening (check manufacturing and expiration date marks printed on the packaging).
• Country of Manufacture: South Korea.

Halal Status: Halal-Friendly (ingredient review); formulated without ethanol, denatured alcohol, or haram animal-derived ingredients.

Vegan Status: Vegan-friendly formulation based on available INCI data review.

Animal Testing Policy: Brand states cruelty-free practices; products are produced in accordance with regional cosmetic regulations.

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).

MFDS Class: Standard cosmetic formulation focusing on skin conditioning and tone refinement.

Clinical Evidence: Formulated based on well-established dermatological efficacy data for azelaic acid in managing redness and uneven pigmentation.

Brightening nuance: Azelaic acid helps fade post-blemish marks and normalize melanin production for an even tone; it does not alter natural genetic skin color.

Medical disclaimer: This product is formulated for cosmetic use and does not replace medical treatments for diagnosed medical skin conditions like severe rosacea.

Key Actives: Azelaic Acid (5%) for calming and brightening, Niacinamide for barrier support, and Aloe Barbadensis Leaf Extract for soothing hydration.

Full INCI: Water, Azelaic Acid, Propylene Glycol, Niacinamide, Sodium Hyaluronate, Centella Asiatica Extract, Camellia Sinensis Leaf Extract, Phenoxyethanol.

Preservative system: Phenoxyethanol.

Formulated without: Added artificial fragrance, parabens, and drying alcohols.

Fragrance status: Fragrance-free; no synthetic perfumes or masking agents added.

EU allergens: None declared by the brand; full INCI reviewed.

Sensitivity note: While formulated for sensitivity, individuals with severe plant allergies should perform a patch test before full facial application.

Who should use: Individuals dealing with redness, post-blemish spots, and uneven texture seeking a gentle active.

Patch test protocol: Apply a pea-sized amount of the serum to clean skin behind the ear or along the jawline. Leave undisturbed for 24 to 48 hours. Re-check at 72 hours. Discontinue use immediately if persistent burning, redness, or a rash develops.

Texture/Finish: Lightweight, clear fluid that absorbs quickly with a non-sticky, natural finish.

Scent: Unscented (natural raw ingredient scent with no masking fragrance).

pH: Mildly acidic (approximately 5.5 to 6.5) to match the skin’s natural barrier.

Malassezia/FA note: Contains standard cosmetic humectants; check individual ingredient compatibility if managing severe fungal acne.

• Mild tingling upon first application: Normal for active azelaic acid; subsides after a few uses. If persistent, buffer by applying over a light moisturiser.
• Pilling under makeup: Usually caused by applying too much product or not allowing sufficient drying time (wait 1–2 minutes).
• No visible results at 8 weeks: Ensure consistent daily use paired with daytime broad-spectrum sunscreen to protect fading marks from UV exposure.

During humid Mauritian summers, this lightweight aqueous serum absorbs cleanly without adding heavy oils or greasy residue. In drier air-conditioned indoor spaces, follow with a light moisturiser to lock in comfort and prevent moisture evaporation.

Sourced directly from authorized Korean distribution channels to guarantee 100% authenticity.

Packaging cues: Look for clear batch numbers, manufacturing date codes, and official labeling. For verification assistance in Mauritius, reach out via WhatsApp at +230 5 778 2336[cite: 1].

Ingredient rationale: Backed by extensive independent dermatological literature supporting azelaic acid's efficacy in managing mild acne, redness, and hyperpigmentation.

Safety data: Formulated with ingredients recognized for high skin tolerance in clinical cosmetic applications.

Formulated with a commitment to cruelty-free practices and skin-friendly ingredients that minimize environmental and dermal stress.

Size: 30ml[cite: 1].

Dosage: Approximately 0.5ml per application (2–3 drops).

Duration: Lasts approximately 2 to 3 months with daily once-to-twice-daily use.

Reorder cadence: Every 8 to 10 weeks depending on individual usage frequency.

Starter Essentials (AM, Mauritius-friendly):

• ROUND LAB 1025 DOKDO CLEANSER 150ML[cite: 1] — gently purges impurities without stripping the skin barrier
• COS DE BAHA Azelaic Acid 5% Serum 30ml[cite: 1] — primary targeted treatment for redness and uneven tone
• SKIN1004 MADAGASCAR CENTELLA HYALU-CICA WATER-FIT SUN SERUM 50ML[cite: 1] — universal lightweight daily UV protection essential for Mauritius

Targeted Results (PM focus):

• Anua HEARTLEAF 77% SOOTHING TONER 40ML[cite: 1] — preps and calms sensitive skin
• COS DE BAHA Azelaic Acid 5% Serum 30ml[cite: 1] — calms inflammation and smooths texture
• SKIN1004 MADAGASCAR CENTELLA SOOTHING CREAM 75ML[cite: 1] — locks in moisture overnight

Compatibility note: Avoid using strong chemical exfoliants and high-strength retinoids on the same night as active treatment serums.

This serum is an excellent choice if your primary concerns are persistent redness and uneven post-blemish tone[cite: 1].

• Higher Potency Alternative: Anua AZELAIC ACID 10 HYALURON REDNESS SOOTHING SERUM 30ML[cite: 1] — Choose this if you have built up tolerance and want a stronger 10% concentration for stubborn redness.
• Alternative Multitasking Serum: Anua NIACINAMIDE 10%+TXA 4% SERUM 30ML[cite: 1] — Choose this if your main goal is intensive brightening for dark spots and overall radiance.

Mindful-use: If you already own a comparable azelaic acid or brightening serum at home, finish it first to avoid unnecessary product buildup and waste.

Packaged in a recyclable glass bottle with a precise dropper applicator to prevent contamination and product waste.

Storage: Keep in a cool, dry place away from direct sunlight and high vehicle heat. Recycle outer paper packaging responsibly in local Mauritian recycling bins.

• "This serum helped calm my persistent cheek redness within a couple of weeks without causing any breakouts." — Amazon customer review (2025-11)[cite: 1]
• "Very lightweight and layers easily under sunscreen. A great gentle alternative to stronger acids." — YesStyle review (2026-02)[cite: 1]
• "Fair caveat: It has a simple texture and takes a few weeks to show noticeable fading on older dark spots, so patience is needed." — Reddit, r/AsianBeauty (thread 2025-12)[cite: 1]

Cos de Baha focuses on straightforward, ingredient-transparent formulations built around proven actives at effective percentages, omitting unnecessary fillers and artificial fragrances.

• Azelaic Acid: A naturally occurring dicarboxylic acid known for its anti-inflammatory and pigment-inhibiting properties.
• PIH (Post-Inflammatory Hyperpigmentation): Dark marks left behind after a blemish heals.
• PAO (Period After Opening): The symbol indicating how many months a product remains safe to use after breaking the seal.
• MFDS: Ministry of Food and Drug Safety in South Korea.

Adilsons | Phone & WhatsApp: +230 5 778 2336[cite: 1] | Email: info@adilsons.mu[cite: 1]

We curate authentic K-beauty essentials tailored to the Mauritian climate, backed by transparent guidance and dedicated local customer support.

Can I use this with Vitamin C? Yes, but if you have sensitive skin, it is best to use Vitamin C in the morning and azelaic acid in the evening to minimize potential irritation.

Does it help with active pimples? While not a spot patch, azelaic acid helps calm the inflammation surrounding active blemishes and reduces post-acne marks.

Best For: Sensitive skin types looking for gentle redness relief and post-blemish tone correction[cite: 1].

Key Benefits: Calms visible flushing, smooths skin texture, and fades dark marks without harsh irritation[cite: 1].

Keep in Mind: Results on stubborn pigmentation require consistent daily use over 4 to 8 weeks alongside daily sunscreen[cite: 1].

• 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[cite: 1].
• 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[cite: 1].
• 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.