A few months ago I added to my evening skincare routine the Sunday Riley...

A few months ago I added to my evening skincare routine the Sunday Riley C.E.O Vitamin C Brightening Serum. I layer it under tretinoin and my skin is looking luminous and hydrated it. I also use the L-Ascorbic acid version in the morning from another renown brand. This formula is very safe for people that cannot tolerate the active form of vitamin C. Give it a try! Your skin will love it!