Medically reviewed by Susan Bard, MD Use vitamin C in the morning and retinol at night to avoid skin irritation.Vitamin C protects against photodamage and should be applied before applying ...

“Vitamin E is a fat-soluble vitamin, and because of this, it works primarily within the cell membranes of the skin by helping ...

Vitamin C is vital to immune function and the maintenance of bone, skin, teeth, and joints. Learn more about its wide range of health benefits.

You can safely take vitamin C and collagen supplements together. Learn the benefits, any potential interactions, and tips for effective supplementation.

All products featured on Glamour are independently selected by Glamour editors. However, when you buy something through our retail links, Condé Nast may earn an affiliate commission. “I usually ...

Insider asked two dermatologists which vitamins you should and shouldn't add to your skincare routine. Vitamin A derivatives help clear acne and discoloration, and vitamin C minimizes skin damage.

Vitamin C, a powerhouse in the world of skincare, has long been revered for its multiple skin-enhancing properties. This essential nutrient, known scientifically as ascorbic acid, is not just a vital ...

As skin ages, it slowly loses its ability to renew and protect. The outermost layer, called the epidermis, becomes thinner. This change weakens the skin’s natural barrier and raises the risk of injury ...

Vitamin C is undeniably one of the best antioxidants for your skin. The only downside is that vitamin C's purest form, L-ascorbic acid (also known as ascorbic acid), can wreak havoc on sensitive skin ...

Vitamin C may help shorten how long cold symptoms last and their severity when used before cold symptoms start, but not after a cold begins.