Hairstylists share their favorite anti-aging hair sprays, shampoos and more from brands like R+Co, Alterna and Olaplex.

The best expert-recommended and editor-tested retinol for your 30s. Shop these retinol products from La Roche-Posay, Kiehl's, ...

Cetaphil's eye serum combines the benefits of an eye cream with the texture of a serum to minimize signs of aging.

Skin-tightening creams can help firm and hydrate skin, but the options are overwhelming. InStyle editors tested a range of ...