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    1. Melatonin Hormone that regulates sleep, sold as a supplement
    2. Alopecia Areata autoimmune disorder causing patchy hair loss
    3. Baricitinib JAK inhibitor pill used for severe alopecia areata
    4. RU58841 Experimental topical anti-androgen sold as a research chemical
    5. Alfatradiol Weak form of estrogen applied to the scalp