COSRXThe Vitamin C 23 Serum

I've been using COSRX's Vitamin C serum for a while now and I'm happy with it. It has an almost watery texture, so it absorbs nicely within seconds. It leaves my skin feeling fresher and brighter.

The best I've tried. It doesn't leave a greasy residue, it brightens the skin, you can continue with your routine and makeup without feeling like your face is heavy. I will definitely buy it again!!

A truly excellent product that shows its effectiveness after just a short period of use! It's not often that a product surprises me so quickly, but I really appreciate this one. Very quickly effective with immediately visible improvement and nourishment! 😊

This serum turned out to be more useful and effective than others I have used. I am already buying a second bottle; I really like it and will definitely use it again.

This highly effective serum unifies the skin, nourishes it and helps with hyperpigmentation after acne. It must be kept in the refrigerator, so that after application it pleasantly cools the skin. It has a watery consistency with a yellow color. If the color darkens, I recommend not using the serum, as it has oxidized and its effects are nullified.

Its the second time I bought it very good for my skin smells a bit but i don't mind. Very easy to absorb.

I have been using this serum for 2 weeks, despite the not-so-good smell, which doesn't bother me, I can see the result. My face is smoothed. I use it in my morning routine after rice toner, I apply Vit. C and a skin cream with factor

Very good product. I have been using it for a month. My skin is soft and fresh. I don't mind the specific smell when using it, what is important is the effect that is visible with regular use.

A good serum with not too many ingredients, but effective. Lightens pigment spots and overall skin tone. Can be aggressive for beginners, and the smell is also a matter of taste.

The tuna smell is true, but it fades quickly, my skin absorbs it very pleasantly, I will definitely buy it again