Search
for

    Sort by

    Learn 5 of 11

    1. Follistatin Protein that blocks activin, a growth-regulating signal
    2. Estradiol Estrogen hormone, prescribed in tablet, patch and gel forms
    3. Vitamin D Vitamin made in the skin from sunlight, also taken as a supplement
    4. Melatonin Hormone that regulates sleep, sold as a supplement
    5. Exosomes Tiny cell-derived particles offered by clinics as an injectable treatment