zahler male vitality+, male fertility supplements, male formula supporting energy and reproductive wellness, certified kosher, 120 tablets zahler male vitality+ is a male fertility supplement and a male support formula. reproductive wellness and male energy are dependent on many factors including optimal hormonal balance (testosterone and estrogen) and stress tolerance (cortisol and adrenal function). male vitality+ provides a complex support protocol of specific nutrients and cofactors required by the body to support hormonal balance.