Tretinoin vs adapalene- all that you want to know It’s no secret that acne is one of the most common skin issues among adults and adolescents. While genetics and hormones can play a role in the development of acne, it can also be caused by environmental factors. No matter what the cause, many people are looking for treatments to help clear their skin. Two such treatments are tretinoin and adapalene, which are both topical medications...