Vitamins (A, C, D3, B) and Minerals (Zinc, Potassium, Biotin) - Vitamins and minerals are crucial for maintaining overall health, including hair health. Vitamin A promotes sebum production, which keeps hair moisturized and prevents dryness. Vitamin C is an antioxidant that aids in collagen production, essential for hair strength. Vitamin D3 supports hair follicle cycling, preventing hair loss. The B vitamins, especially Biotin, are known for their role in promoting hair growth and reducing shedding.