signaling protein that, when suppressed, may grow hair by reducing inflammation and stem cell loss  
        a synthetic prostamide used to treat eyelashes also shows promise for stimulating hair growth on scalp  
        glaucoma medication with hair follicle stimulant effects  
        a synthetic estrogen used topically as an anti-androgen  
        a synthetic anti-androgen and weak progestogen that inhibits DHT binding to androgen receptor