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Human hair has more unsaturated fats inside than on the surface, and certain lipids may help bind the outer and inner layers together.

Hair in mammals likely evolved from glandular structures, not scales.

Some mutant mice have hair with abnormal cross-linking, mainly in the cuticle, not affecting other hair parts.

Melanin density affects hair color, and this method can help in cosmetic assessments and diagnosing hair diseases.

The hair-growth formula with L-cystine helps protect and grow hair cells.

Lipase H is important for hair follicle function and shaping hair fibers.

Hairless protein reduces Msx2 gene activity, affecting hair follicle development.

Transplanted rat hair follicles grew hair and had increased but not fully restored nerve connections in mice.

Nutrients like vitamins, copper, zinc, and amino acids are crucial for healthy hair and wool growth.

Hair growth is influenced by hormones and goes through different phases; androgens can both promote and inhibit hair growth depending on the body area.

Cosmetic procedures can harm hair, but damage can be minimized with knowledge and care; however, once hair is damaged, it cannot be reliably repaired.

In vivo reflectance confocal microscopy is useful for evaluating hair shaft diseases but needs improvement for deeper hair follicle issues.

Environmental, chemical, mechanical, and personal health factors can all damage hair and contribute to hair loss or changes in hair quality.

The research shows that a gene called Wnt3 affects hair growth and structure, causing short hair and balding when overactive.

Hair ages due to genetics and environmental factors, leading to graying and thinning, with treatments available for some conditions.

Human beard hair medulla contains a unique and complex mix of keratins not found in other human tissues.

Hormones and their receptors, especially androgens, play a key role in hair growth and disorders like baldness.

Hair follicles offer promising targets for delivering drugs to treat hair and skin conditions.

Two specific hair keratin genes are active during hair growth and decline as hair transitions to rest.

Miniaturized hairs stay connected to muscle in alopecia areata, allowing possible regrowth, but not in androgenetic alopecia.

The RORα gene is active in different parts of cashmere goat hair follicles and may be influenced by melatonin, especially in December when hair growth changes.

The proteins transthyretin and megalin are more present in the growth phase of hair, suggesting they might affect hair health and growth.

Nourkrin® with Marilex® may increase hair count by 35.7% in postpartum hair loss.

ADAM 10 and ADAM 12 proteins are involved in different stages of hair growth and could be targets for treating hair disorders.

The review suggests limited treatments for common hair loss conditions, with potential for future improvements.

Disrupting Acvr1b in mice causes severe hair loss and thicker skin.

Blocking a specific protein signal can make hair grow on mouse nipples.

White hair grows thicker and faster than black hair due to higher activity of growth-related genes and proteins.

Nd:YAG laser can reduce hair with multiple treatments, but permanent removal isn't guaranteed.

Certain proteins and their receptors are more active during the growth phase of human hair and could be targeted to treat hair disorders.