Nanogen's Hair Growth Factor Serum is the result of over 20 years of development and research into improving the condition of hair and scalp. This high strength but gentle formula contains a highly concentrated mix of our unique 'Hair Growth Factors'. These are extracts of Pea Sprout and Larix Bark combined with a blend of Peptides. These ingredients have been shown to stimulate the production of hair cells, revitalise hair follicles and reduce hair shedding. The scientifically formulated, non-oily formula maintains hair health and creates the best conditions for healthy looking hair.