What are Polyhydroxy Acids? The role of PHA in skincare | Ask Doctor Anne

When I mentioned The Inkey List PHA Toner, I got many questions: What are PHA or Polyhydroxy Acids? And what is their role in skincare? Can they be combined with retinol, which skin types are they best for and which concentration do we need? Here are the answers! And if you want to get a vote in the next Ask Doctor Anne Topic, Ingredient Spotlight or product I review, don’t forget you can head over to my Patreon account here: to get more involved! Shop everything mentioned in this video here (affiliate links): The Inkey List Pha Toner: Zelens Pha Resurfacing Facial Pad: Glossier Solution: Peter Thomas Roth Pro Strength 10% Pha Exfoliating Clarifying Liquid: Shop more of my favorite products here: