Overview What is vitamin D deficiency? Vitamin D deficiency means you don’t have enough vitamin D in your body. It primarily causes issues with your bones and muscles. Vitamin D is an essential vitamin that your body uses for normal bone development and maintenance.

8 Best Vitamins and Supplements for Dry Skin. 1. Vitamin D. Vitamin D is a fat-soluble vitamin that’s critical for many aspects of health, including the health of your skin. Keratinocytes are skin 2. Collagen. Collagen is the most abundant protein in your body and accounts for 75% of your skin’s

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vitamin d deficiency cause dry skin