1. Retinoid creams
A host of over-the-counter products claim to help fight wrinkles. One option: topical retinoid (derived from vitamin A) creams; look for retinol in the ingredient list. "They're the only thing that's been proven to get rid of wrinkles that you already have," says Leslie Baumann, a Miami Beach dermatologist in private practice and the author of The Skin Type Solution: A Revolutionary Guide to Your Best Skin Ever. You can buy an OTC retinoid for under $20. Dermatologists can prescribe stronger retinoid creams—like Retin-A—than what you'll find on store shelves.
[Find out why aging skin doesn't have to be wrinkled.]