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Some congenital hair disorders improve in childhood or with treatments like minoxidil and retinoids, while others like Netherton syndrome and trichothiodystrophy have a poor prognosis.

The evidence for using Low-Level Laser Therapy for hair loss is limited and more thorough research is needed.

Both immature and mature fat cells are important for hair growth cycles, with immature cells promoting growth and mature cells possibly inhibiting it.

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

Eating isoflavone can help mice grow hair by increasing a growth factor.

Some medications might reverse gray hair, especially those that reduce inflammation or stimulate pigment production, and vitamin B might help.

Different populations have distinct hair structures related to their ancestry.

Researchers found genes that control hair color and growth change before the visible coat color changes in snowshoe hares.

An enzyme other than TNAP might be responsible for vitamin B-6 metabolism in the skin.

The long-pulsed alexandrite laser is effective for hair reduction, particularly for light-skinned individuals with dark hair, but caution is needed for darker skin.

The environment around melanocyte stem cells is key for hair regeneration and color, with certain injuries affecting hair color and potential treatments for pigmentation disorders.

Pulsed-intense light can significantly reduce hair, with effectiveness depending on treatment number and timing, and has mild side effects.

EPR spectroscopy showed that spontaneous hair growth results in thicker skin and less pigmented hair than depilation-induced growth.

Laser hair removal works well for people with dark hair and light skin, but it's less effective for light hair or dark skin; improvements are expected.

Mouse skin color ranges from pink to black, depending on their hair growth cycle.

Cat color patterns are determined early in development by gene expression and epidermal changes, with the Dickkopf 4 gene playing a crucial role.

Ultraviolet rays damage hair, smoking may cause hair loss, and good nutrition is important for hair health, but genetics mainly decide hair thickness.

Hormones and genes affect hair growth and male baldness.

Hair aging and loss are caused by genetics, hormones, environment, and grooming, with treatments like minoxidil effective for certain types of hair loss.

Melanoma development can be linked to the breakdown of skin's melanin-producing units.

A substance called TCQA could potentially darken hair by activating certain genes and increasing melanin.

Sex hormones, especially estradiol, can change chicken feather shapes and colors.

Coloring white hair before IPL treatment effectively helps remove it.

Palmitoyl tetrapeptide-20 may help reduce hair greying and increase melanin production.

Environmental and cosmetic factors, including heat, chemicals, and sun exposure, can cause hair loss and damage.

DNA phenotyping helps predict physical traits from DNA with varying accuracy and requires careful ethical and legal handling.

Finasteride reduces melanin production, possibly treating hyperpigmentation and melanoma, but needs more safety research.

Hair color and length affect metabolite profiles in hair, so they should be considered in hair analysis.

New treatments for skin and hair disorders in women of color address unique biological differences and include specific acne medications, sunscreens, skin lighteners, and hair care adjustments.

Only skin melanocytes, not other types, can color hair in mice.