Vitamin A plays an important role in the immune system. Lack of vitamin A will lead to keratinization of respiratory, digestive, urinary and reproductive epithelial cells, destroy their integrity and be vulnerable to bacterial invasion.

The source of vitamin A in food is a natural beauty element endowed by nature. As a powerful antioxidant, vitamin A can not only improve the skin's water-retaining function, but also help to moisturize the skin, remove spots and wrinkles and delay skin aging.

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