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Umbilical cord blood is a valuable source of stem cells for medical treatments, but its use is less common than other transplants, and there are ethical issues to consider.

Gender-affirming hormone therapy improves physical performance in trans men to the level of cisgender men, while in trans women, it increases fat mass and decreases muscle mass, with no advantage in physical performance after 2 years.

Various substances, including cosmetic sponges, vein glue, chai tea, skincare products, and medicaments, can cause allergic contact dermatitis, and healthcare workers often react to N95 masks.

Micropigmentation is a cosmetic tattooing technique for hiding skin issues and creating permanent makeup, but it can have side effects.

Turning off the Lhx2 gene in mouse embryos leads to slower wound healing and scars.

The follicular unit extraction method for hair transplants is a technique with benefits and drawbacks.

People with early-onset androgenetic alopecia may have a higher risk of heart disease due to abnormal blood lipid levels.

Overexpressing the mineralocorticoid receptor in mouse skin causes skin thinning, early skin barrier development, eye issues, and hair loss.

Using a diode laser for hair removal without eye protection can cause serious eye injuries.

The O'Connor Tweezer Dexterity Test effectively screens for skilled surgical hair restoration assistants.

Speak up at meetings to improve safety in cosmetic procedures.

Eyelash alopecia areata often goes undiagnosed and can lead to complete eyelash regrowth, especially in younger patients.

The document says biodegradable cosmetics and packaging are better for the environment and user experience.

Home-use medical-cosmetic devices like lasers for hair removal may be convenient but need more research to confirm safety and effectiveness.

Alopecia Areata is an autoimmune hair loss condition, with various treatments showing mixed effectiveness and no guaranteed cure.

Isotretinoin effectively treats severe acne and similar conditions, but has common, mostly reversible side effects, requiring careful patient monitoring.

Researchers identified genes linked to coat color, body size, cashmere production, and high altitude adaptation in goats.

Premature graying of hair may suggest health issues and currently lacks effective treatments.

Asian hair is generally straight and thick, with unique disorders and properties, and more research is needed to understand it fully.

Graying hair happens due to aging and might be delayed by new treatments.

An 800nm diode laser safely and effectively reduces hair for about 8 months, with most patients satisfied and few side effects.

Tofacitinib, an arthritis drug, helped hair growth in alopecia universalis but long-term safety needs more research.

Effective scalp reconstruction requires a wide range of surgical skills and an understanding of hair biology.

Beige and leaden pigment genes act within melanocytes, affecting pigment patterns.

Redheaded people may have evolved to efficiently make vitamin D in areas with less sunlight.

Severe alopecia areata greatly impacts quality of life, mental health, and daily activities.

Redheaded people have higher levels of a vitamin D precursor, suggesting red hair may be an adaptation for better vitamin D synthesis in areas with less sunlight.

Patients with one autoimmune disease should be checked for other autoimmune disorders.

Men and women need different facial rejuvenation treatments due to distinct aging processes and anatomical differences.

Dermatologists give better information on pathology forms, hypersensitivity vasculitis is a common skin issue, misdiagnoses can occur, and various skin conditions are linked to loss of elastin or genetic factors.