The most important nutrients for long-term skin care, especially in the summer months. Beta-carotene, in the form of a plant-based vitamin A precursor, supports skin and mucous membranes. Biotin contributes to the maintenance of normal skin and hair, while hyaluronic acid is a natural component of connective tissue, skin and hair. Vitamin E contributes to cell protection and hinders antioxidative damage to membranes. And lastly, vitamin C contributes to normal collagen formation for the normal function of skin.