My Own Purchased Skincare Review: COSRX The Vitamin C 23 Serum

COSRX is a brand I trust and use!

The Vitamin C serum has a high concentration of a whopping 23% pure Vitamin.

However, it was less irritating because it contained Vitamin E and hyaluronic acid!

Personally, I felt that consistent use helped with whitening and elasticity.

Please do not use other exfoliating products together with Vitamin C.

Make sure to put a towel on your pillow before you sleep! The pillow cover turns yellow.

Please make sure to apply sunscreen thoroughly the next day as well!