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There are many treatments for permanent hair loss disorders, but their effectiveness varies and there's no clear best option.

Androgens can both stimulate and cause hair loss, and understanding their effects is key to treating hair disorders.

The human hair follicle can store topical compounds and be targeted for drug delivery with minimal side effects.

Different soft tissue fillers can cause various skin reactions; biodegradable fillers are safer and non-biodegradable ones like silicone can lead to long-term problems.

The document concludes that accurate diagnosis and personalized treatment are important for skin problems in women with PCOS.

Hair elemental analysis could be useful for health and exposure assessment but requires more standardization and research.

The p75 neurotrophin receptor is important for hair follicle regression by controlling cell death.

Mutations in the PADI3 gene are linked to a higher risk of scarring hair loss in women of African descent.

Treatments for permanent hair loss from scarring aim to stop further loss, not regrow hair, and vary by condition, with partial success common.

Lichen planus pigmentosus causes dark skin patches and is treated by avoiding triggers and using anti-inflammatory medications.

Traction alopecia is more common in African women than girls, especially when traction is applied to chemically relaxed hair; avoiding such hairstyles may reduce the risk.

Male pattern baldness involves smaller hair follicles, larger oil glands, and other tissue changes, but not major blood supply issues.

Improving skin barrier and using antifungal treatments can help manage dandruff.

A wearable device using electric stimulation can significantly improve hair growth.

Microneedling is a safe and effective treatment for various skin conditions, often preferred for its fewer side effects and shorter recovery time.

Testosterone supplements can increase muscle mass and strength in older men with low levels, but long-term effects and risks need more research.

Skin can be cooled quickly and safely during laser treatments to protect it without affecting deeper layers.

Polygonum multiflorum extract helps grow hair by activating certain hair growth signals in mice.

Different hair evaluation methods have their own pros and cons, and using multiple methods together is best for accurate hair loss diagnosis and tracking.

The document concludes that accurate diagnosis of different types of hair loss requires careful examination of hair and scalp tissue, considering both clinical and microscopic features.

Researchers developed a new model for more realistic computer graphics of hair by considering how light scatters on hair fibers.

Wool follicles are complex, involving interactions between different cell types and structures.

The yeast Pityrosporum ovale can cause skin allergies and infections, and antifungal treatments like ketoconazole are effective against it.

Blocking β-catenin in skin cells improves hair growth during wound healing.

Alpha-hydroxy acids, like glycolic acid, safely improve skin issues and work on all skin types.

Keratin 15 is not a reliable sole marker for identifying epidermal stem cells because it's found in various cell types.

Alopecia Areata is an autoimmune condition often starting before age 20, with varied treatment success and a need for personalized treatment plans.

Feather growth and regeneration involve complex patterns, stem cells, and evolutionary insights.

The document concludes that cosmetic surgery is still mainly a practice for women and the gender gap in this field is expected to continue.

Treatments for melanin disorders exist, but more effective options needed.