Cosrx The Vitamin c13 serum

COSRX The Vitamin C 13 Serum is a gentle, beginner-friendly brightening serum formulated with 13% pure Vitamin C (Ascorbic Acid). It helps improve overall skin radiance, lighten dark spots, fade acne marks, and even out skin tone without irritation. Designed for sensitive and first-time Vitamin C users, this lightweight formula absorbs quickly and leaves the skin glowing, hydrated, and smooth. Enriched with Vitamin E and Hyaluronic Acid, it nourishes the skin while delivering daily antioxidant protection.

Benefits

• Brightens dull, tired-looking skin

• Fades dark spots, pigmentation, and post-acne marks

• Evens out skin tone and improves texture

• Provides antioxidant protection against environmental damage

• Hydrates and nourishes the skin

• Beginner-friendly formula suitable for sensitive skin

• Gives a healthy, natural glow with consistent use

Directions to Use

After cleansing and toning, apply 2–3 drops to your face. Gently massage until fully absorbed. Suitable for morning or evening use.

If using in the daytime, follow with sunscreen (SPF 30 or above).

Store in a cool, dry place away from direct sunlight. If you are new to Vitamin C, start using it 3–4 times a week and gradually increase.

Main Ingredient

Ascorbic Acid (13%): A pure form of Vitamin C known for brightening, fading discoloration, boosting radiance, and supporting collagen production. The 13% strength provides visible results with minimal irritation, making it ideal for sensitive or first-time users.

Full Ingredient 

Water, Ascorbic Acid (13%), Butylene Glycol, Propanediol, 1,2-Hexanediol, Methyl Trimethicone, Squalane, Polyglyceryl-10 Myristate, Polyglyceryl-10 Laurate, Hydroxyethylcellulose, Arginine, Ethylhexylglycerin, Tocopherol (Vitamin E), Sodium Hyaluronate, Allantoin, Adenosine.