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Nearly half of the French individuals surveyed reported having a sensitive scalp, more common in women, often linked to hair loss and symptoms like itching, and triggered by factors including shampoos and pollution.

Correcting nutrient deficiencies may help with hair loss, but the benefits of supplements without a deficiency are uncertain and could be harmful.

Procyanidin compounds from grape seeds were found to significantly increase mouse hair growth.

Dandruff is mainly caused by a scalp reaction to yeast, can worsen hair loss, and antifungal treatments may help.

TGF-β1 from dermal papilla cells suppresses hair growth, and targeting it may help treat androgenetic alopecia.

Minoxidil promotes hair growth but stops working when discontinued.

Androgenetic alopecia involves genetics, hormones, and can be treated with medications or surgery.

The document concludes that follicular unit transplantation offers more natural results and better graft survival than older hair transplant methods.

Japanese women typically start experiencing hair loss after 40, with reduced hair density and thickness being the main factors.

Some heart drugs show promise for other conditions, but more research is needed to confirm their effectiveness and safety.

Dermoscopy helps diagnose and monitor treatment for hair loss from scarring conditions like discoid lupus and lichen planopilaris.

Minoxidil and finasteride treat hair loss; more research needed for other options.

Careful planning and patient counseling can lead to excellent hair transplant results, often in one or two sessions.

Treatment with plasma rich in growth factors improved hair density and thickness for hair loss patients.

Androgens cause skin issues like acne and hair growth in women, often due to PCOS, and can be treated with medication and lifestyle changes.

The document concludes that good cosmetic outcomes in hair transplantation depend on the surgeon's artistic skill and careful planning.

Platelet preparations generally show positive effects on wound healing and facial rejuvenation, but more thorough research is needed to confirm their effectiveness.

A handheld dermatoscope helps diagnose different types of hair loss effectively.

Androgens can both promote and prevent hair growth due to differences in gene expression in hair follicles.

Researchers found 63 genes linked to male-pattern baldness, which could help in understanding its biology and developing new treatments.

Scalp cooling can prevent chemotherapy-induced hair loss, and certain treatments can speed up hair regrowth, but more research is needed for better treatments.

PRP treatment may stimulate hair growth by promoting blood vessel formation, increasing growth factors, and preventing cell death.

Oral minoxidil promotes hair growth but may cause side effects; needs monitoring.

Genetics and hormones cause hair loss; finasteride treats it safely.

Exosomes from human skin cells can stimulate hair growth and could potentially be used for treating hair loss.

Lowest effective minoxidil concentration is 1%, but 2% works better for male pattern baldness.

Researchers found 71 genetic regions linked to male pattern baldness, which account for 38% of its genetic risk.

Children's hair grows in different types from before birth through puberty, with growth rates and characteristics varying by age, sex, and race.

PRP treatment helps hair growth in most cases, but more research needed.