The Lazy, Broke Girl's Guide to Younger-Looking Skin

Vitamin A is the original source of retinol, which many dermatologists and amateur skin care junkies claim is the ultimate wrinkle fighter. Other derivatives of vitamin A include retinoic acid, which is stronger than retinol and often requires a prescription to get. However, if you don't feel like visiting a doctor to get this more powerful iteration, try something over the counter. It doesn't have to be expensive, either — many women swear by Sonia Kashuk Radiant Boost Restorative Facial Oil ($16), which contains the powerhouse ingredient.