How to Layer Niacinamide and Tretinoin Together Without Irritating Your Skin
Tretinoin can transform your skin. It can help clear acne, fade dark marks, smooth rough texture, and soften fine lines. But it can also cause dryness, redness, and peeling. That is where niacinamide may help. Niacinamide is a form of vitamin B3. It supports the skin barrier and helps the skin hold moisture. It may