Cos De BAHA 10% Niacinamide + Zinc 1% Serum is a high-strength Korean clarifying serum designed to control excess oil, reduce acne breakouts, minimize pores, and improve uneven skin tone. With a balanced combination of Niacinamide, Zinc PCA, and hydrating agents, it supports a clearer, smoother, and healthier-looking complexion without over-drying the skin.
Niacinamide (10%)
Zinc PCA (1%)
Hyaluronic Acid
Botanical Extracts
Water (Aqua), Niacinamide, Propanediol, Zinc PCA, Glycerin, Sodium Hyaluronate, Aloe Barbadensis Leaf Extract, Panthenol, Allantoin, 1,2-Hexanediol, Arginine, Ethylhexylglycerin, Disodium EDTA
Q1. Is 10% Niacinamide safe for daily use?
Yes, but beginners should start once daily and increase gradually if skin is sensitive.
Q2. Can this serum help with acne scars?
It helps fade post-acne marks and improves uneven skin tone over time.
Q3. Will it dry out my skin?
No, the formula includes hydrating ingredients to prevent dryness.
Q4. Can I use it with Vitamin C or Retinol?
Use Niacinamide in the morning and Retinol at night. Vitamin C is best used separately to avoid irritation.
Q5. Is it suitable for sensitive skin?
Yes, but a patch test is recommended due to the high niacinamide concentration.
Q6. How long does it take to see results?
Oil control may be noticed within 1–2 weeks; clearer skin typically appears within 3–4 weeks.
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