October 2022 in “International Journal of Molecular Sciences” Fish collagen peptides can significantly promote hair growth.
72 citations,
November 2017 in “Journal of developmental biology” The Hedgehog signaling pathway is important for skin and hair growth and can lead to cancer if it doesn't work right.
April 2017 in “Journal of Investigative Dermatology” The BMP/Smads pathway and Id2 gene control hair follicle stem cells, affecting their rest and growth phases.
Certain natural products may help stimulate hair growth by affecting stem cell activity in the scalp.
41 citations,
October 2008 in “The American journal of pathology” Blocking a specific protein signal can make hair grow on mouse nipples.