When it comes to achieving radiant, youthful-looking skin, what you put on your plate can be just as important as the products you apply to your face. Dermatologists and nutrition experts say certain vitamins play a key role in supporting skin health from the inside out—helping to maintain collagen, protect against environmental damage, and promote healthy cell turnover.
While a consistent skincare routine is important, nourishing your body with the right nutrients can help strengthen your skin’s natural defenses and improve its overall appearance. Below are three essential vitamins doctors recommend incorporating into your diet if you want healthier, more radiant skin.

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1. Vitamin C
Vitamin C plays a central role in maintaining skin structure by supporting collagen formation and protecting against environmental damage that accelerates aging.
“Vitamin C is essential for collagen synthesis and acts as a powerful antioxidant. It helps protect skin from UV exposure and environmental stressors that accelerate fine lines, wrinkles, and loss of firmness,” says board‑certified dermatologist Dr. Monique Chheda.
Where to find it: Citrus fruits, kiwi, berries, bell peppers, and leafy greens.

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2. Vitamin E
Vitamin E helps protect cell membranes and strengthen the skin’s moisture barrier, which can improve hydration and help you achieve that natural glow.
“Vitamin E is a lipid-soluble antioxidant that protects skin cell membranes,” and it “helps to improve smoothness and overall skin radiance,” says Dr. Chheda.
Where to find it: Nuts, seeds, olive oil, and spinach.

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3. Vitamin A (Carotenoids)
Vitamin A, particularly in the form of carotenoids, supports healthy skin cell turnover and helps shield the skin from UV damage, promoting a more even, luminous complexion.
“Vitamin A plays a key role in skin cell turnover. From a dietary standpoint, carotenoids like beta-carotene and lycopene act as antioxidants that accumulate in the skin, helping protect against UV-induced damage,” says Dr. Chheda.
Where to find it: Carrots, sweet potatoes, leafy greens, tomatoes, and peppers.
The Bottom Line
Healthy, glowing skin often starts from within. By incorporating vitamin-rich foods that contain vitamins C, E, and A, you can help support collagen production, protect your skin from environmental stressors, and encourage healthy cell renewal. Experts say pairing these nutrients with a balanced diet, proper hydration, and daily sun protection can go a long way in maintaining a smooth, youthful complexion over time.