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Can You Combine Retinol and Lactic Acid?

https://www.futurederm.com/can-you-combine-retinol-and-lactic-acid/Can You Combine Retinol and Lactic Acid? I have been saying for many years on this blog that you cannot use acids and retinoids together. I even consulted with Dr. Leslie Baumann who said “Retinoids should not be mixed with BHA (salicylic acid) or AHA (glycolic acid) because the BHA and AHA can inactivate the retinoid. Always use retinoids at night because