Tretinoin and Kojic Acid
Thank you for your question. It is true that these two topicals have been used together in compounding pharmacies under one prescription. However I think it is essential to seek the advice of a professional and receive such a prescription before use, and certainly do not prepare this combined solution yourself.
Retin A and Kojic Acid
These two topicals are often combined in compounding pharmacies into one prescription. So, yes, they can be applied together, but are usually pre-mixed for proper strength purposes. I wouldn't recommend putting them on together if you have them in separate things.
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