community I have been applying undiluted, pure 100% peppermint oil to my scalp, 2.5ml a day as an experiment
A user is experimenting with applying undiluted peppermint oil to their scalp daily to stimulate hair growth, based on a rat study where peppermint oil outperformed minoxidil. The user reports immediate hair thickening and increased scalp blood flow, while others in the conversation express skepticism, humor, and concern about the undiluted application.