TLDR Mouse hair follicles grow best in a special medium, especially when cut and from adult mice.
The study established an in vitro culture model for mouse vibrissa follicles using serum-free medium. Results showed that follicles in the early anagen phase grew significantly faster than those in other phases, and adult mouse follicles exhibited better hair fiber growth compared to 7-day-old mice. Additionally, follicles with the upper one-third excised grew faster than intact or mixed cut follicles. The use of Williams medium E with L-glutamine supported follicle growth for over 8 days.
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12 citations,
January 2010 in “European Journal of Dermatology” Norgalanthamine from Crinum asiaticum may help hair grow.
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January 2021 in “Biomedicine & Pharmacotherapy” DHT stops hair regrowth in mice, similar to human hair loss.
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April 2021 in “International Journal of Molecular Sciences” The study concluded that changing the culture conditions can cause sika deer skin cells to switch from a flat to a 3D pattern, which is important for creating hair follicles.
December 2022 in “Frontiers in Pharmacology” Tianma Gouteng decoction may help prevent hair loss and promote hair growth.