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 What should I know about retinol before taking it?
- Q Which skin conditions does topical retinol treat?
- Q What is the difference between retinol and carotenoids?
- Q How does retinol affect pregnancy?
- Q What should I do in case of a retinol overdose?
- Q Does retinol treat acne?