CommunityIs’nt 10% niacinamide a too high concentration? I’ve heard niacinamide is not only less irritating but also more effective around 3-5%?MMilleAugust 12, 2022 at 09:44 PMIs’nt 10% niacinamide a too high concentration? I’ve heard niacinamide is not only less irritating but also more effective around 3-5%?Acne & clogged poresRelated ProductsNiacinamide 10% + Zinc 1%The Ordinary11 comment Log in or sign up to leave a comment Login