I really like this vitamin C serum. The concentration of vitamin c is lower, so it is a great serum to start implementing vitamin c. It was one of the first serums I have used, and while it cleared my skin, made it glowy and moisturized, it never left it irritated and it never burned. So I would very much recommend this serum for a well-priced starter serum!
This serum has a low concentration (5%) of vit C. I prefer a higher concentration, as my skin is not sensitive to it. 3 stars because the serum was already dark yellow when I received it, whereas other brands have a clear color when first opening the product. The packaging is very convenient though.