
Product Overview
COSRX Vitamin C 13 Serum 20ml is a specialized serum treatment created by COSRX 01 to nourish, protect, and revitalize target areas without harsh irritation. Featuring Vitamin C, this formula targets surface dullness and moisture loss, providing essential nourishment to support smooth, healthy-looking skin. Its balanced composition ensures effortless application and seamless layering with your existing skincare products.
Key Ingredients
Uses & Benefits
How to Use
Frequently Asked Questions (FAQ)
Q: Is Cosrx Vitamin C 13 Serum 20ml suitable for daily use?
A: Yes, Cosrx Vitamin C 13 Serum 20ml is formulated for gentle, safe daily application in your regular care routine.
Q: Can this product be used on sensitive skin types?
A: Yes, it is enriched with skin-soothing ingredients such as Vitamin C. Performing a patch test on your inner arm prior to first use is recommended.
For external cosmetic use only. Avoid direct contact with eyes; if contact occurs, rinse thoroughly with clean water. Discontinue use if signs of redness or irritation develop. Keep stored out of reach of children in a cool, dry environment.

COSRX was established in South Korea in 2013 by Sanghoon RX, deriving its brand name from Cosmetics and RX (prescription). Built on a philosophy of minimalist skincare using concentrated active ingredients, COSRX gained global popularity for effective acne care, Advanced Snail Mucin repair products, and gentle BHA exfoliants tailored for sensitive skin.