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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 restoration for East Asians should consider their unique characteristics like head shape, hair thickness, and hair density, and use modified procedures and treatments to minimize scarring and maintain hair density.

The review highlights the importance of stem cells in hair health and suggests new treatment strategies for hair loss conditions.

The research showed how melanocytes develop, move, and respond to UV light, and their stem cells' role in hair color and skin cancer risk.

Higher hair luminosity and shine mean higher perceived transparency.

Hair dyes and perms can damage hair and scalp, but using interventions can reduce harm.

Hair analysis can detect drug use but is costly and interpretation is complex.

Combining scalp photos with hair density and caliber measurements gives a more accurate assessment of hair loss.

The herbal hair dye with natural ingredients like henna was successfully made and tested, but more research is needed on its effectiveness on different hair colors and benefits.

Acitretin treatment unexpectedly darkened a patient's gray hair.

Hair care products are important for appearance and self-esteem, and choosing the right ones can help maintain healthy hair.

Some drugs can cause skin, nail, and hair problems, which are important for healthcare professionals to recognize and report.

Hair analysis is not a precise way to measure livestock's mineral status but can help when used with other methods.

Polydopamine is a safe, effective, and permanent hair dye that turns gray hair black in one hour.

Hair and nail changes can indicate health issues, including cancer and side effects from cancer treatments.

The document explains hair biology, the causes of hair loss, and reviews various hair loss treatments.

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

The study found specific hair and scalp patterns for different types of hair loss in Koreans, noting racial differences affect diagnosis.

Men have more tryptophan in their hair than women, and it increases with age and is higher in darker and grey or white hair.

The 830-nm wavelength was most effective at promoting hair growth in rats using low-level laser therapy.

Moving horses to new places can increase their stress levels, as shown by higher stress hormone in their hair.

Laser hair removal can help treat acne keloidalis nuchae, but results vary and a standard scoring system is needed.

The herbal hair dye is a safe and eco-friendly alternative to conventional dyes.

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

Human hair contains more glycosaminoglycans in children than adults, and these compounds decrease with age, possibly affecting hair thickness.

Colored hair-thickening fibers can help hide hair loss in some people with Epidermolysis Bullosa but may cause scalp irritation.

The hair fiber filler product increased satisfaction and improved quality of life for people with thinning hair.

Chemical hair straighteners can cause scalp and hair damage, but long-term effects are unclear.

A woman's premature gray hair turned mostly black again after using Greyverse solution and hair supplements for 5 months.

The herbal hair dye with a 1:2 henna to indigo ratio works well, is safe, and eco-friendly.