COSRX - Unicares review for AHA/BHA Refresh Vitamin C Booster Serum

I'm glad I found a good alternative with good ingredients to vitamin C serum. Previous vitamin C serum that I used before got me stinging sensation and tend to turn brownish color in two months time even in the fridge before it was used up. now no need to worry if it gets oxidized or changes its color. It is gentle to the sensitive skin and suitable for acne prone skin. I will recommend you to buy this if you need a vitamin C serum in your skincare routine.