What are the main benefits of multivitamin hair supplements, and can they reduce hair loss and improve hair growth? Multivitamin hair supplements are becoming increasingly popular as people look for ways to improve the health of their hair. Multivitamin supplements are safe, and free from the negative side-effects that you would usually find with medications. While multivitamin supplements are safe, just how effective are they for overall hair health? Here are some potential benefits of taking multivitamin hair supplements: Promotes hair growth Multivitamin hair supplements may contain nutrients that promote hair growth, such as biotin (vitamin B7), other B vitamins, and vitamin E. Improves hair thickness and strength Vitamins such as vitamin D and iron can improve the thickness and strength of hair by improving the health of hair follicles. Various vitamins can work particularly well in conjunction with each other. Prevents hair damage Antioxidants such as vitamin E and vitamin C