The Alopecia Help Collection

Most of us think of prolactin as the hormone responsible for milk production after childbirth. It hardly seems relevant to hair. So I was surprised to discover that human hair follicles don’t just respond to prolactin. They appear to make it themselves. That immediately raises a question. Why would a hair follicle produce a hormone best known for helping mothers breastfeed? The answer isn’t obvious. In fact, despite more than twenty years of research, scientists still don’t k

Does melatonin do more than help us sleep? Hair follicles produce their own melatonin, yet scientists are only beginning to understand why. A fascinating new laboratory study suggests melatonin may influence the stem cells responsible for growing new hair, adding another piece to the complex puzzle of androgenetic alopecia.

Hair follicles and eyes share an unusual biological feature: both depend on carefully controlled immune privilege.

A new study published online ahead of print has reported that applying a liposomal dutasteride formulation to damp scalp skin resulted in more dutasteride in the hair follicles than with application to dry skin.

Why does hair loss usually affect the top of the scalp while the hair at the back and sides often remains thick for decades? Modern research suggests that hair follicles from different parts of the scalp are biologically different and may even carry a “memory” of where they came from. Dr Gwen Adey explores one of the most fascinating mysteries in hair biology: how hair follicles seem to know where they are.

Imagine your phone battery. When it’s brand new, it lasts all day. A few years later, it doesn’t. It still works. Just not as well. A fascinating new study published in 2026 made me wonder whether something similar might happen inside some hair follicles

Could hair loss treatment affect your chances of having children one day? A new review published in May 2026 examined the evidence surrounding finasteride, dutasteride, male fertility and sexual function.

PRP wasn’t originally developed for hair loss. Discover how a treatment designed to support wound healing evolved into one of the most widely studied regenerative therapies for androgenetic alopecia.

Excerpt Scientists are now experimenting with engineering early hair follicle structures using living cells, biomaterials and advanced bioprinting technologies. Could regenerative medicine eventually move beyond preserving hair… toward creating entirely new follicles?

A new 2026 review explores how hair loss affects transgender women, including the role of hormone therapy, oral minoxidil, finasteride, hair transplantation and emerging approaches to hair restoration.