The present teachings provide methods for stimulating the hair growth on a human head including simultaneous administration:a) by oral or transdermal route of a composition containing a 5-alpha-reductase inhibitor or a peripheral vasodilator, andb) by topical route of a composition containing as active ingredient an extract of Allium species, an extract of Citrus species and either an extract of Paullinia species and an extract of Theobroma speciesor an extract of Salix species and zinc sulfate.
