Cos De Baha Niacinamide 10% + Zinc PCA 1% Serum (N30) 30ml

Cos De Baha Niacinamide 10% + Zinc PCA 1% Serum (N30) 30ml is a targeted Korean serum designed to help even out skin tone and refine texture, particularly for those dealing with post-acne marks, sun-induced discolouration, or an oily T-zone. In a climate where humidity and pollution can leave skin looking dull and congested, this lightweight formula works to brighten and balance without feeling heavy or greasy.

What is Cos De Baha Niacinamide 10% + Zinc PCA 1% Serum (N30) 30ml and how does it work?

Cos De Baha Niacinamide 10% + Zinc PCA 1% Serum (N30) 30ml is a concentrated treatment that combines two well-researched ingredients to address uneven tone and excess oil. Niacinamide, a form of vitamin B3, helps reduce the appearance of dark spots and redness by supporting the skin’s natural barrier and regulating melanin production. Zinc PCA, a zinc salt of pyrrolidone carboxylic acid, works to control sebum and soothe inflammation, making it particularly useful for oily or acne-prone skin.

Together, these ingredients create a serum that helps brighten the complexion while keeping shine in check. The 10% niacinamide concentration is high enough to show results without causing irritation, while the 1% Zinc PCA ensures the formula remains lightweight and non-comedogenic — ideal for layering under moisturiser or sunscreen in Bangladesh’s warm, humid weather.

Best for these skin types and concerns

• Oily or combination skin that struggles with shine and congestion
• Skin with post-inflammatory hyperpigmentation from acne or irritation
• Dull or uneven tone caused by sun exposure or pollution
• Enlarged pores or rough texture that needs refining
• Sensitive skin that reacts to heavier creams or oils
• Anyone looking for a brightening serum that layers well under sunscreen

While this serum is gentle, those with very dry or eczema-prone skin should patch test first, as niacinamide can occasionally cause mild redness or tingling on compromised barriers.

How to apply it for best results

1. After cleansing and toning, dispense 2-3 drops of Cos De Baha Niacinamide 10% + Zinc PCA 1% Serum (N30) 30ml onto your fingertips.
2. Gently press the serum into your face and neck, avoiding the eye area. Let it absorb for 30-60 seconds before applying moisturiser.
3. Use morning and evening, but if you’re also using vitamin C or exfoliating acids, apply those first and wait 10 minutes before layering this serum.
4. Always follow with sunscreen in the morning — niacinamide helps protect against UV-induced damage, but SPF is non-negotiable under Bangladesh’s strong sun.
5. For best results, use consistently for at least 4-6 weeks. Dark marks and uneven tone fade gradually, not overnight.

What to expect over time

This serum doesn’t promise instant transformation, but with regular use, you should notice a more even-toned, balanced complexion. The first changes — a reduction in shine and a slight brightening — often appear within 2-3 weeks. Fading of dark marks and refinement of texture take longer, typically 6-8 weeks, especially if you’re diligent with sun protection. In Bangladesh’s climate, where humidity and UV exposure can worsen pigmentation, pairing this serum with a broad-spectrum sunscreen is key to seeing real, lasting improvement.

Check on Delivery: Inspect the product carefully when you receive your order. Packaging can vary between batches while the product remains the same original item.

Storage: Store in a cool, dry place away from direct sunlight. Keep out of reach of children. Check expiry date on packaging before use.

Patch Test: If you have sensitive skin, apply a small amount to your inner wrist and wait 24 hours before full use. Stop use if irritation occurs.

• Niacinamide (10%)
• Zinc PCA (1%)