I also posted this in one of the Blogs....

I would love to see a list of some common products/actives that should not be used together or with restrictions (never use "these products" in the same routine….or only use "this product" in the morning and "this product" in the evening…..or only use "these products" on alternating days) I have read warnings about AHAs/BHAs with retinol products…..Vit C and copper peptides….etc.....would also love to hear the reasoning behind the theory.....Thank you…