COSRX The Vitamin C 13 Serum 20ml SUNSCREENS How long until I see

How long until I see results

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COSRX The Vitamin C 13 Serum 20ml SUNSCREENS How long until I seeCOSRX The Vitamin C 13 Serum: An Entry Level L Ascorbic Acid for Brightening Beginners COSRX's Vitamin C 13 Serum sits at the gentler end of the pure L ascorbic acid category. At 13% L ascorbic acid, this is a true vitamin C serum, not the more stable ascorbyl derivatives that many K beauty brands hide behind. It's formulated specifically for users who want measurable brightening and antioxidant protection but aren't ready to tolerate a 20%