chemical from L'Oreal that encourages hair to enter growth phase  
        a JAK inhibitor for alopecia areata and other autoimmune conditions  
        natural substance from Neem tree with medicinal and pesticidal properties  
        popular antihistamine showing promise for hair loss as an anti-inflammatory and prostaglandin inhibitor  
        diabetes drug with anti-inflammatory, immunomodulatory, and insulin-sensitizing properties