Bosley Follicle Energizer is for areas of thinning & low density hair. Contains Scalp Activators that may help raise follicle energy levels. Pentapeptides help stimulate production of root-strengthening Keratin Protein. Apple Stem Cells Extract may support healthy hair follicles. Biotinyl-GHK helps protect & repair hair follicles. Algae extract helps reduce D.H.T. (a primary cause of thinning & hair loss). Wheat Amino Acids nourish and strengthen.