Synergistic herbal compositions comprising combination of a first ingredient selected from the extract(s), fraction(s), active compound(s) and phytochemicals or mixtures thereof derived from the plant parts of Punica granatum and a second ingredient selected from the extract(s), fraction(s), active compound(s) and phytochemicals or mixtures thereof derived from the plant parts of Theobroma cacao for improving testosterone levels. The invention further provides the method of obtaining at least one health benefit related to enhanced anabolic and androgenic activities in the body selected from improving testosterone levels, energy levels, sustained energy, vigor, stamina, healthy aging, cellular longevity, muscle mass, muscle strength sexual function (libido and erectile function) and psychological well-being (mood and focus); and reducing stress in humans and alleviating the symptoms associated with the low levels of testosterone in humans such as loss of libido, loss of erectile function, abdominal obesity, decreased muscle mass and strength, fatigue, mood swing, decreased bone density, decreased motivation, and decreased memory and concentration.Compositions synergiques à base de plantes comprenant une combinaison associant un premier ingrédient choisi parmi le ou les extraits, fractions, composés actifs et substances phytochimiques ou mélanges de ceux-ci provenant de parties de la plante Punica granatum, et un second ingrédient choisi parmi le ou les extraits, fractions, composés actifs et substances phytochimiques ou mélanges de ceux-ci provenant de parties de la plante Theobroma cacao, et visant à améliorer les niveaux de testostérone. L'invention concerne en outre le procédé d'obtention d'au moins un avantage pour la santé lié à une amélioration des activités anaboliques et androgéniques de l'organisme, sélectionné parmi l'amélioration des niveaux de testostérone, des niveaux d'énergie, un renforcement de l'énergie, de la vigueur, de la vitalité, un vieillisseme