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Hair becomes gray and thin as we age, and while most hair loss in older people is due to genetics, there's a chance for gray hair to regain color under certain conditions.

Hair graying may be caused by stem cell depletion from stress or melanocyte damage.

For women with moderate to severe unwanted hair growth or acne, birth control pills are the first choice, with other medications like cyproterone, spironolactone, flutamide, or finasteride as alternatives, and permanent hair removal should be done with electrolysis or laser.

Red deer only have androgen receptors in neck hair cells for mane growth during breeding season.

The review concludes that accurate diagnosis of different types of hair loss requires proper biopsy techniques and understanding the hair growth cycle and underlying causes.

Minoxidil helps hair regrowth in alopecia, but more research needed.

No treatment has been proven to effectively stop hair loss or regrow hair in Frontal Fibrosing Alopecia, and more research is needed.

Women with androgenetic alopecia have lower zinc and iron levels.

Alopecia areata causes varying hair loss patterns, affecting hair, nails, and possibly glands, with treatment outcomes depending on disease duration and extent.

Hirsutism is too much hair growth in women like the pattern in men, often caused by high male hormones, and can be treated with hormone control and hair removal methods.

Bmpr2 and Acvr2a receptors are crucial for hair retention and color.

The home-use IPL device effectively reduced hair and delayed its regrowth after six months of use, with users happy and no negative side effects.

Sox2 controls hair color by affecting pigment production in hair follicles.

Tofacitinib can temporarily improve hair growth in alopecia universalis, but its effectiveness may decrease over time.

A new small peptide may help hair growth by activating a specific receptor and should be tested in humans.

Alopecia Areata causes significant structural and compositional changes in hair.

Laser hair removal is now more effective, but the best treatment schedule is still uncertain.

Different sizes of keratin peptides can strengthen hair, with smaller ones possibly increasing volume and larger ones repairing damage.

Combining hair transplantation with microneedling or laser and UV light may help treat tough vitiligo on hands and feet, with microneedling being affordable and easy to learn.

Gray hair is caused by reduced melanin production or transfer issues, linked to aging and possibly health conditions, with treatments focusing on color camouflage.

Hair and skin healing involve complex cell interactions controlled by specific molecules and pathways, and hair follicle cells can help repair skin wounds.

A woman experienced rapid hair loss after taking albendazole, but it started to improve when she stopped the medication.

The conclusion suggests that focusing on certain cellular pathways may improve the prevention and repair of hair loss caused by radiotherapy.

Researchers developed a new method to test hair growth drugs and found that adult cells are best for hair growth, but the method needs improvement as it didn't create mature hair follicles.

Hair loss reduces hair thickness and coverage, but drug treatments mainly revive dormant hairs rather than reverse thinning; patients often undervalue their hair loss severity.

Surfactants in shampoos and conditioners remove some but not all lipids from hair, and more research is needed to understand their full impact.

Aging changes hair stem cells and their environment, leading to gray hair and hair thinning, but understanding these changes could help develop treatments for hair regeneration.

Chemotherapy and radiotherapy can cause skin side effects like rashes, hair loss, and nail changes, which are usually managed with conservative treatments.

Saw palmetto is an effective natural treatment for hair loss with minimal side effects.

Regulating cell death in hair follicles can help prevent hair loss and promote hair growth.