Skin care products with nonprescription forms of vitamin A (like retinol) are less expensive than Rx creams, but they also have less research to back them up. There's some evidence that retinol revs up collagen production, though studies of other mild forms of A, such as retinyl esters, have been disappointing.
- Q How does retinol treat a vitamin A deficiency?
- Q What should I do in case of a retinol overdose?
- Q What happens if I miss a dose of topical retinol?
- Q What are the side effects of retinol?
- Q Does retinol interact with cancer treatments?
- Q How does topical retinol cause what is known as the "retinoid effect?"