The main benefit of vitamins in skincare products is their role as antioxidants that reduce free radical damage and prevent the appearance of premature aging. But vitamins can help in other ways, according to esthetician Renée Rouleau, including stimulating collagen production, strengthening the skin’s barrier function, and brightening the complexion. You can find out more about her view of the benefits of Vitamins A, B3, C and E in skincare products in the article: The Vitamins Guide to Skin Care.

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