Tressurge, the vitamin C content derived from citrus trees where procapil was obtained is also important for enhancing collagen production. This translates to hair growth which is possible even for people with dormant hair follicles.Biotin deficiency has been associated with hair loss. This nutrient plays a role in improving the keratin infrastructure of the body. A 2015 study showed that women who took biotin supplement were found to experience a significant amount of hair growth. They were also found to have great reduction of hair loss.Click Here