I have not seen significant lightening of the pigmentation on my cheeks after using one tube but I have to be realistic as my pigmentation is hereditary so I don’t expect to see results so soon. I don’t experience any irritation despite the high vit C concentration so I will continue to use it and KIV.
I have sensitive skin and trying vitamin C for the first time in my routine. Applying it to address the pigmentation on cheeks. No adverse reactions, and am starting to see the lightening of the brown pigmentation in 2 weeks. highly recommended.