Advances in experimental medicine and biology , 264 , 7984
doi: 10.1007/s12020-015-0852-y 29 WuYCWangWTLeeSSKuoYRWangYCYenSJet al
Historical cosmetic and preclinical data suggest that topical copper peptides may improve hair shaft diameter and reduce shedding, yet controlled, large-scale clinical trials are sparse
These include: Grapefruit , peppermint oil, and goldenseal Certain types of antibiotics such as ciprofloxacin, clarithromycin, and erythromycin Antifungal (azole) drugs such as itraconazole or ketoconazole Certain types of antiviral medications such as ritonavir, atazanavir, darunavir, Invirase (saquinavir), and Crixivan (indinavir) Blood pressure medications such as verapamil Benzodiazepine sedatives such as diazepam and midazolam Corticosteroids such as dexamethasone or fluticasone These drugs, foods, or supplements dont need to be discontinued or modified
The reason isn't patent protection