GreenLife Hair Vitalizer Essence-in-Drink strengthens hair follicles from the roots and supports hair rejuvenation for healthier hair growth. This special blend contains Biotin and pomegranate extract to support hair growth and stimulate keratin production. The hydrolysed marine collagen strengthens and hydrates hair while the OPITAC Glutathione aids in providing dark and smooth hair. It also contains vitamins C, E and Zinc that support a healthier scalp and improve hair volume.?