The Male Hormone

Humans all start out as females, that is the default sex. As we develop, our bodies either continue developing into a female or testosterone is produced. This hormone encourages muscle, bone, hair, and male genitalia growth. During puberty, testosterone causes boys’ voices to lower and their faces to grow hair. It’s magical, isn’t? Purchase this testosterone necklace for yourself or for a friend to celebrate the wonders of the male hormone. It also makes a great gift for women transitioning to men, endocrinologists, body builders, and starry-eyed pre-med students.