Retin-A vs Retinol
Retin-A or tretinoin is the most active retinol and, as such, is many times more powerful in correcting cellular damage, preventing sticking of the keratin layer, increasing skin vascularization and increasing collagen production in the dermis, the skin's support layer. It is a drug and is, thus, prescriptive. Since retinol is similar to Retin-A but not prescriptive, many cosmetic and cosmaceutical companies put retinol in their products to fool the public into thinking they will get the benefit of Retin-A when, in fact, they will not.