Collection: Vitamin C

Start here: COSRX Vitamin C 23 Serum, NUMBUZIN No.5+ Glutathione Vitamin Serum — all part of our MARO Picks, the 15 products we recommend first.

Vitamin C is the go-to ingredient for dark spots, post-acne marks, and a dull complexion. Korean vitamin C formulas tend to favor stable, gentler derivatives that brighten over time without the stinging associated with high-strength ascorbic acid.

Use in the morning under sunscreen for antioxidant protection, or at night if your skin is sensitive. Introduce slowly, avoid layering with strong exfoliants at first, and be consistent — brightening results build over four to eight weeks.

Every product is 100% authentic, sourced directly in Korea, and ships free to the US and worldwide from THE MARO SHOP.