Everyday Health editors tested 42 eye creams to find the best options for puffiness, dark circles, and fine lines. Our top picks include formulas from Olay, Peter Thomas Roth, Estée Lauder, and more.

Using vitamin C serum the right way makes all the difference. Apply it on clean, dry skin, use only 3 to 4 drops, and always ...

Astronomers have obtained the sharpest-ever X-ray spectrum of an iconic active galaxy, providing the most accurate, precise ...