Ive beej using this for almost 2 yrs now. This is my fave serum aside from loving the cosrx brand. I love this serum so much like top tier, i used this together with cosrx snail mucin moisturizer

COSRX's Refresh AHA BHA Vitamin C Booster Serum is a game-changer. The concentrated formula combines AHA, BHA, and Vitamin C, delivering a powerful boost to my skincare routine. It effectively brightens and revitalizes my skin, leaving it refreshed and radiant. The 30ml size is perfect for targeted application, making it a skincare essential

I order this for my friend and she really happy with it. it help reduce her acne scars also brightening her skin.

I loveeeeeeeeeeeeeeee this product .

I got oily skin.my face looks brighter after use this.Recommend.

One of my fave products. Love it so much

As always with COSRX, great serum and works as advertised. It’s hydrating and brightening for a morning serum on my combo skin. It’s great on my oily spots and has helped with my plaque psoriasis flare ups on my face, especially on my chin and around my eyes. Gentle exfoliation that you can use in the morning.

Very good, serum for brightening the skin and exfoliate dead skin cells

I love how it work as it advertise. worth to get.

One of my fave products. Love it

One of my fave products. Love it so much

It's actually good, just don't forget to use sunscreen!

I love all the product from Stylekorean. They provide only the authentic products to customers. I can say Stylekorean is the most trustful website for everyone who is interested in Korean cosmetics.

This was too gentle for my skin. Love cosrX and StyleKorean

This didnt do anything for my skin unfortunately. There are better products out there. This was too gentle for my skin.

this is light and easy to use, not too strong on senstive skin.

good product not regret purchasing at all. love it

So far so good but I want to give it a couple of weeks or a month to settle my review on this product