Dr. Garshick suggests pairing tretinoin with hyaluronic acid and ceramides to combat any dryness or irritation that you might ...

Retinol — the milder, over-the-counter cousin of prescription-strength retinoids — is a vitamin A-derived powerhouse that tackles everything from fine lines to acne.

Getting sun exposure is the #1 morning habit to boost vitamin D and serotonin for the day. Learn how to enhance your physical ...