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FAPD is a possible diagnosis for hair loss in patients of color and requires multiple evaluations for accurate diagnosis.

The study suggests fibrosing alopecia in a pattern distribution has distinct features and may vary by race.

Mammalian hair scales change from smooth to wavy due to friction.

External agents penetrate skin more easily in areas with fewer lipids, especially through hair follicles.

Finasteride and analogues separated using LC-MS-MS technique.

African hair is curled, Asian hair is thick, European hair is lighter, and chemical methods help identify hair color differences.

X-ray exposure affects developing hair follicles.

The conclusion is that substances can penetrate hair fibers through multiple pathways, including both the cell membrane complex and the non-keratinous parts.

Diffusion in artificial sebum is mainly influenced by molecular size and is much faster than in skin lipids.

TOF-SIMS improved chemical mapping in cells, confirming gunshot residue, tracking anti-tumor drugs, and identifying molecules in mosquitoes and wounds.

The research suggests that SFRP2 and PTGDS proteins might be indicators of female pattern hair loss and could contribute to hair loss.

White hair has less lipid content and absorbs water differently than brown hair.

Southern Chinese women with female pattern hair loss have less, thinner hair and smaller hair follicles.

Hair feels different when touched and rubs together in various ways.

A new method using near-infrared light can effectively detect and analyze internal hair damage.

The new Follicular Map method could help assess hair treatment effectiveness but has some limitations.

Diagnosing hair loss disorders needs clinical, dermoscopic, and histological differences, and checking menstrual cycle, weight changes, drug therapy, and nail changes.

Curly hair shape is due to uneven growth patterns in the hair follicle.

PCOS causes hormonal imbalances and health issues like infertility and heart disease.

Crimped wool has proteins linked to crimp formation, while straight wool has proteins linked to fiber fineness, which can improve wool quality and value.

The torsional method effectively evaluates hair damage and the performance of hair care ingredients.

Sulphur in hair follicles increases from the bulb and then levels off, while other elements vary in distribution.

Recognizing trichoscopic features is crucial for diagnosing various hair loss conditions.

The PW91 method is best for calculating the basic physical and chemical properties of Finasteride, a drug used for prostate issues and hair loss.

The new method reliably identifies and measures different animal hair fibers in textiles.

The method successfully visualizes iodine in biological tissues.

Dye enters hair at the edges of cuticle cells and penetrates more from water than alcohol-based solutions.

A new method creates precise, stable microscale structures with reduced friction and potential for complex designs.

The method shows how hair lipids form specific patterns and their roles in hair structure.

Hair analysis can detect drug use but requires careful interpretation due to its complexity.