When do you use Azelaic acid and Tretinoin?

Azelaic acid can be used up to twice a day, whereas tretinoin is ideally applied only once daily (preferably as part of your night routine). Because both are categorized as active ingredients, some individuals may find they prefer using azelaic acid in the morning and tretinoin at night. 

Leave a Comment

Your email address will not be published. Required fields are marked *

Shopping Cart