Hair vitamins are supplements designed to promote hair growth, improve hair quality, and prevent hair loss. These vitamins typically contain a blend of ingredients such as biotin, vitamins A, C, D, and E, as well as minerals like iron, zinc, and selenium. Biotin, also known as vitamin H or B7, is a popular ingredient in hair vitamins as it is believed to improve the strength and thickness of hair, prevent hair loss, and promote new hair growth.
