AnsweredAssumed Answered

Will mixing skin care creams together inhibit active ingredients?

Question asked by Alexander Karayanis on Oct 31, 2019
Latest reply on Jun 11, 2020 by Joseph Dallal


I'd like to know if mixing different skincare creams/lotions/gels together into one composite cream will cause a chemical interaction that will inhibit any of the active ingredients. My purpose here is to have only one cream to apply in the morning instead of several, therefore saving time getting ready and space in my dopp kit. Active ingredients include tretinoin, clindamycin, azlaic acid, hydroquinone, and benzoyl peroxide. 


On the same route, would mixing skin lotions containing glycolic acid, lactic acid, and anti-fungal and anti-inflammatory ingredients cause any reactions that would disable any of them?


Thank you!