Promote Stronger, Shinier Hair Many people struggle with hair that feels brittle , thin, or dull, and often look to special “Hair/Skin/Nails” formulas for help. These supplements are typically blends of vitamins, minerals, and botanical extracts designed to nourish hair from the inside out. One of the most famous ingredients is biotin, a B vitamin essential for keratin production, the protein tha t makes up the structure of your hair. When keratin is well supplied, hair strands become more resilient and less prone to breakage. Other nutrients frequently found in these formulas, such as vitamin C, zinc, and silica, support collagen production and scalp health, which improves the environment where hair grows. Antioxidants from vitamins A and E help fight free-radical damage that can age hair prematurely, while amino acids like cysteine contribute to stronger, smoother cuticles. A healthy scalp and well-nourished follicles result in thicker growth, enhanced shine, and reduced shedding...