Frank doesn't recommend layering azelaic acid with Beta Hydroxy Acids (BHAs) like salicylic acid as both BHAs and AHAs will increase the chances of dryness and ...

Frank doesn't recommend layering azelaic acid with Beta Hydroxy Acids (BHAs) like salicylic acid as both BHAs and AHAs will increase the chances of dryness and ...

How long does azelaic acid take to work topically? It will take 6-8 weeks of consistent topical use of azelaic acid before you begin to see improvements. ...

Frank doesn't recommend layering azelaic acid with Beta Hydroxy Acids (BHAs) like salicylic acid as both BHAs and AHAs will increase the chances of dryness and ...