This is a list of investigational hair loss drugs, or drugs that are currently under development for clinical use in the treatment of different forms of alopecia (hair loss), such as androgenetic alopecia (pattern hair loss) and alopecia areata (spot baldness), but are not yet approved.
Chemical/generic names are listed first, with developmental code names, synonyms, and brand names in parentheses. The format of list items is "Name (Synonyms) – Route – Indication – Mechanism of Action [Reference]".
This list was last comprehensively updated in July 2025. It is likely to become outdated with time.
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: CS1 maint: article number as page number (link)A new topical spray of finasteride (2.275 mg/mL, 0.25%) using hydroxypropyl chitosan (HPCH) technology has been approved for marketing in Italy (Caretopic®); Spain (Alocare®); Portugal, Germany, Switzerland, Hungary, and the Czech Republic (Fynzur®); Luxembourg, Korea, Saudi Arabia, Slovakia, and Romania (Finjuve®); France (Fincrezo®); and Belgium (Fynzur®) until June 2024.
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: CS1 maint: DOI inactive as of July 2025 (link)