Generally speaking, yes, Retinol, or vitamin A, is loved by dermatologists for its ability to speed skin cell turnover and boost collagen production. (A retinoid denotes prescription strength, while retinol is over the counter.) The downside: It can be harsh on skin, causing flaking and dryness. Be sure to introduce retinols slowly into your skincare routine and be sure to check its percentage is not too high for your sensitive skin.