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 Who should not take retinol?
- Q What should I know about retinol before taking it?
- Q What should I avoid while using topical retinol?
- Q What should I know about topical retinol before using it?
- Q What happens if I miss a dose of topical retinol?
- Q Are there over-the-counter and prescription versions of topical retinol?