Aquaporins in skincare explained: how AQP3 moves water and glycerol through your skin, and how to tell if your skin needs hydration, lipids, or both.

An Expert Guide to Matching Texture, Formula, and Skin Needs Choosing the best moisturizer for your skin type is one of the most important — and most misunderstood — steps...

A simple Circadia 3-step routine for dry skin that hydrates deeply, supports the skin barrier, and delivers lasting moisture year-round.

Discover why winter dries out your skin and learn expert tips to prevent acne, eczema, chapped lips, and irritation all season long. Stay glowing in the cold.

Don't let dry or dehydrated skin leave you with wrinkles. Here's how to tell if you have dry or dehydrated skin and what to do about it.