Cos De BAHA Salicylic Acid BHA 4% Serum 30ml (S4)

✨ Introduction

Cos De BAHA Salicylic Acid BHA 4% Serum (S4) 30ml is a powerful Korean exfoliating serum formulated to unclog pores, reduce acne, and smooth skin texture. With 4% salicylic acid (BHA), it penetrates deep into pores to dissolve excess oil and dead skin buildup, helping prevent breakouts and refine uneven tone. Its lightweight, watery texture makes it ideal for targeted use in Bangladesh’s humid climate—especially for oily, acne-prone, or congested skin.

🧴 How to Use

Use in the evening after toner.
Apply 2–3 drops to affected areas or full face if skin is tolerant.
Follow with moisturizer.
Start with 2–3 times per week and increase gradually.
Always apply sunscreen during the day.

🌿 Hero Ingredients & Benefits

• Salicylic Acid (4%): Deeply exfoliates inside pores, clears congestion, and reduces acne.
• Niacinamide (5%): Brightens skin tone and calms inflammation.
• Aloe Vera & Green Tea Extracts: Soothe and hydrate post-exfoliation.
• Fragrance-Free & Alcohol-Free: Safe for oily and acne-prone skin when used properly.

🧪 Full Ingredients List

Salicylic Acid, Niacinamide, Aloe Barbadensis Leaf Extract, Camellia Sinensis Leaf Extract, Glycerin, Butylene Glycol, 1,2-Hexanediol, Disodium EDTA.

⚠ Do & Don’t

Do:
Start slow and build tolerance.
Use sunscreen daily to protect exfoliated skin.
Store in a cool, dry place away from sunlight.

Don’t:
Use on broken, irritated, or highly sensitive skin.
Mix with other strong actives (retinol, AHAs, vitamin C) unless skin is tolerant.
Skip patch testing if you have reactive skin.

👤 Suitable Skin Types

✅ Oily or acne-prone skin
✅ Congested or textured skin
✅ Normal to combination skin
✅ Skin needing exfoliation and breakout control
❌ Not recommended for dry or fungal acne-prone skin without patch testing