TLDR Raspberry ketone may help grow hair and improve skin elasticity.
In 2008, researchers found that raspberry ketone (RK) could potentially promote hair growth and improve skin elasticity. In mice, RK increased dermal insulin-like growth factor-I (IGF-I) and promoted hair regrowth. In human trials, 10 subjects with alopecia applied 0.01% RK to their scalp for 5 months, with 50% experiencing hair growth. Additionally, 5 female subjects experienced increased cheek skin elasticity after applying RK for 2 weeks. The study suggests RK's benefits may be due to its ability to enhance IGF-I production through sensory neuron activation. However, the small number of human participants indicates a need for further research with larger sample sizes.
20 citations,
April 2006 in “Dermatologic Clinics” Antiandrogen therapies are beneficial for treating skin and hair conditions related to androgen levels.
174 citations,
April 2005 in “The American journal of pathology (Print)” Capsaicin, found in chili peppers, can slow down hair growth by affecting skin cells and hair follicles.
227 citations,
January 1998 in “Journal of Endocrinology” Cells from balding scalps have more androgen receptors than cells from non-balding scalps.
47 citations,
August 2016 in “Fitoterapia” Some herbs and their components might help treat hair loss by affecting various biological pathways, but more research and regulation are needed.
Some plant-based ingredients may help with hair growth and care, but more research is needed to confirm their effectiveness.
41 citations,
July 2015 in “Current Drug Discovery Technologies” Some plants may help with hair growth and have fewer side effects than synthetic drugs, but more research is needed to confirm their effectiveness.
22 citations,
January 2011 in “Indian Journal of Dermatology/Indian journal of dermatology” Cow placenta extract may help hair grow by increasing a growth factor but is less effective than minoxidil.
December 2023 in “Journal of Food Science and Nutrition” Rosehip Seed Oil may help hair grow by activating important growth pathways and increasing hair follicle size in mice.
