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Careful selection of mice by genetics and age, and controlled housing conditions improve the reliability of hair regrowth in wound healing tests.

Isoliensinine, a natural compound, prevents stress-related hair greying by blocking a specific receptor on hair cells.

Human hair follicles can grow and stay healthy for up to 8 days in a lab setting.

CGRP may help protect hair follicles from immune system attacks, potentially slowing hair loss.

Gray hair may be caused by lower antioxidant activity in hair cells.

Estrogen can temporarily slow down hair growth but this can be reversed.

The same hormone can affect gene expression differently in various tissues, which could lead to new treatments for conditions like hair loss.

Scientists successfully edited a goat's genes to grow more and longer cashmere hair.

Azelaic acid helps protect hair cells from UV damage and encourages hair growth by increasing certain gene expressions and proteins.

Bimatoprost eye drops make rabbit eyelashes longer, thicker, and darker, and increase the number of lashes without causing inflammation.

Trapezoid donor strips give more hair follicles than elliptical ones in hair transplants.

Hair follicles are normally protected from the immune system, but when this protection fails, it can cause hair loss in alopecia areata.

Topical calcitriol-analogs can reduce hair loss caused by chemotherapy.

Mouse genital development depends on male or female hormones for specific features.

Modern hair restoration techniques have evolved from punch grafting to methods like micro-grafting and follicular unit transplantation, but they are labor-intensive, expensive, and can lead to patient dissatisfaction. Future treatments may involve cloned hair follicles and drugs like finasteride.

New hair follicles could be created to treat hair loss.

Adiantum capillus-veneris Linn reduced hair loss and improved hair growth in mice with testosterone-induced alopecia.

Chemotherapy-induced hair loss is partly due to decreased laminin-511 and increased laminin-332.

A protein called HMGB1 helps hair grow by affecting prostaglandin metabolism.

MicroRNAs are important for hair growth regulation, with Dicer being crucial and Tarbp2 less significant.

The enzyme RDH12 plays a role in vision and retinal disease, with mutations leading to early onset visual loss and blindness, but the exact disease mechanism is unclear and there are no treatments yet.

Keratin-associated proteins are part of the developing hair fiber cuticle.

The Graft Quality Index grades hair transplant grafts to predict placement difficulty and surgery results.

Certain bacteria from the Citrullus colocynthis plant may be a new source of antibiotics to fight drug-resistant diseases.

Different hair restoration techniques like follicular unit extraction, scalp reduction, and body hair transplantation can improve results for patients unhappy with their initial surgery, but they also have potential risks.

Researchers successfully grew hair follicle stem cells from mice and humans, which could be useful for tissue engineering and regenerative medicine.

Retinoic acid helps activate hair growth in people with common hair loss by working on a specific cell growth pathway.

Piperine from black pepper can make hair less oily by blocking fat cell development in hair roots.

Transplanted rat hair follicles grew hair and had increased but not fully restored nerve connections in mice.

ILC1-like cells can independently cause alopecia areata by affecting hair follicles.