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Heparan sulfate is important for hair growth, preventing new hair formation in mature skin, and controlling oil gland development.

Hormones and neuroendocrine factors control hair growth and color, and more research could lead to new hair treatment options.

The conclusion is that we need more effective hair loss treatments than the current ones, and these could include new drugs, gene and stem cell therapy, hormones, and scalp cooling, but they all need thorough safety testing.

Low-dose UVB light improves hair growth effects of certain stem cells by increasing reactive oxygen species.

Safflower (Carthamus tinctorius) extract helps hair grow and could be used in hair products.

Hair follicle regeneration in skin grafts may be possible using stem cells and tissue engineering.

Tiny particles called extracellular vesicles could help with skin healing and hair growth, but more research is needed.

Aging in hair follicle stem cells leads to hair graying, thinning, and loss.

Accurate clinical, histological, and genetic methods are key for understanding and treating hair disorders.

Men's hair loss is caused by hormones and genes, and can be treated with medication and surgery, while graying is due to aging and has no prevention except dyeing.

Hair loss in mice starts with immune cells damaging hair roots before it becomes visible.

Hair problems are common and distressing for women, but increasing knowledge of treatments offers hope.

A substance called VIP might protect hair follicles from being attacked by the immune system, and problems with VIP signaling could lead to hair loss in alopecia areata.

Mice are useful for researching human hair loss and testing treatments, despite some differences between species.

The study found that a specific area of the hair follicle helps start hair growth by reducing the blocking effects on certain cells and controlling growth signals.

Cell-based therapies using dermal papilla cells and adipocyte lineage cells show potential for hair regeneration.

Hormone therapy affects hair growth in transgender individuals, with testosterone potentially causing hair loss in trans men and estrogen reducing facial/body hair in trans women; treatment options vary.

Olive leaf compound oleuropein helps grow hair in mice.

Rice bran extract can potentially treat hair loss by promoting hair growth and increasing the number of hair follicles.

Apple-derived procyanidin B-2 can safely promote hair growth in men.

Caffeine applied to the scalp can protect hair follicles from UV damage.

Placental growth factor may help treat hair loss.

Stress in mice delays hair growth and treatments blocking substance P can partly reverse this effect.

Steroidogenic isoenzymes may help improve treatments for common hair loss.

Nd:YAG laser can reduce hair with multiple treatments, but permanent removal isn't guaranteed.

The conclusion is that future hair loss treatments should target the root causes of hair thinning, not just promote hair growth.

Activating NRF2 might help treat hair disorders by improving antioxidant defenses.

Hair follicles are valuable for regenerative medicine and wound healing.

Hair follicles on the scalp interact with and respond to the nervous system, influencing their own behavior and growth.

Polyamines are important for hair growth, but more research is needed to understand their functions and treatment potential.