Provided are compositions containing a unique combination of vitamin B1, vitamin B6, vitamin B12, folic acid, magnesium glycinate, ferric glycinate, L cysteine, biotin, Polygonum multiflorum, and Emblica officinalis. Methods of increasing hair volume in a subject by administering to the subject a composition containing vitamin B1, vitamin B6, vitamin B12, folic acid, magnesium glycinate, ferric glycinate, L cysteine, biotin, Polygonum multiflorum, and Emblica officinalis are also included.