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Yak belly hair has higher porosity and is less stiff than human hair, making it absorb dye better but less suitable as a direct substitute for hair dyeing.

Low-level laser therapy using near-infrared light may help heart conditions and promote healing by releasing nitric oxide.

Microneedling is effective for skin rejuvenation and various skin issues, but more research is needed to confirm its safety and effectiveness.

Non-ionic silicone emulsion best protects hair color from sunlight.

Intense pulsed light treatment mainly damages pigmented hair parts but spares stem cells, allowing hair to regrow.

Combination therapy works best for female hair loss, increasing density and thickness.

Skin and hair changes in horses can indicate serious diseases, and recognizing these signs is important for treatment and management.

The conclusion is that Pigmented Epithelioid Melanocytoma can start from hair follicle stem cells or from a mole on the skin.

Topical tretinoin may increase beard hair density.

Hormone imbalances from endocrine diseases can cause various skin conditions that help diagnose and treat these diseases early.

Curcumin applied to the skin can start hair growth in mice.

Possible causes of female hair loss include androgenetic alopecia, telogen effluvium, cicatricial alopecia, and alopecia areata incognita; diagnosis and treatment require dermoscopy and histopathology.

A 35-year-old man had patchy hair loss that was actually due to syphilis, not alopecia areata.

A man with a birthmark on his scalp developed hair loss that improved with treatment, but the link between the birthmark and hair loss was unclear.

Some alternative therapies for vitiligo show promise but need more research.

More men are getting cosmetic surgery, with Botox and hair removal being popular, but these procedures have risks.

Higher light doses cause more damage to hair follicles, predicting better hair removal results.

Heptaminol may cause hair lightening in hemodialysis patients.

Genetics, stress, and health issues can cause early hair greying, which affects self-esteem, and there's no cure, only hair dye.

Photodynamic therapy can remove nonpigmented hair in mice and might work for humans.

Contact immunotherapy can cause vitiligo in patients with autoimmune conditions.

Premature graying of hair significantly harms psychological and social wellbeing.

Caffeine may protect hair follicles from stress-related hair loss.

Certain Ayurvedic herbs may help manage premature greying of hair.

The protein Gnαs is found more in black mice than white mice and may influence their coat color.

The document suggests using safer, plant-based hair products instead of harmful synthetic ones.

Melasma is a skin condition linked to female hormones, genetics, UV exposure, and certain medications, but not to pituitary, adrenal, or thyroid diseases.

Treating melasma in men is difficult, especially for the deeper skin layers, and may need more than just topical treatments.

The 'Swiss cheese' pattern in scalp biopsies can indicate trichotillomania, not just alopecia areata.

Hair loss improved with treatment and successful transplant.