There are three basic ways that nutritional diet vitamin supplements and amino acid supplements may act influence the hair follicles. The mineral rich and vitamin supplements may act directly on hair stimulating or inhibiting growth activity or they may act indirectly through other intermediaries.
Proteins for Hair Growth
People with hair loss often turn to protein and amino acid supplements as part of their treatment regime. Although it is rare for a lack of protein to be a primary cause of hair loss, there is no harm in taking extra protein or amino acid supplements if you wish for your hair growth.