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Wool and hair fibers absorb moisture similarly due to their keratin structure, with the amount of non-crystalline areas affecting the moisture uptake.

The gene Foxq1, controlled by Hoxc13, is crucial for hair follicle differentiation.

Mice without certain skin proteins had abnormal skin and hair development.

Loss of a specific protein in skin cells causes symptoms similar to psoriasis.

Different techniques measure hair properties to ensure cosmetic products work.

Red fox, golden jackal, and gray wolf hairs have similar features but differ in length, thickness, and inner structure.

Oxidative hair dye changes hair color and structure but doesn't weaken it.

α-type filaments in guinea pig hair follicles have unique structural features.

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.

Dutasteride, usually used for prostate issues and hair loss, could potentially treat Amyotrophic Lateral Sclerosis (ALS) due to its neuroprotective, antioxidant, and anti-inflammatory properties, but more testing is needed.

High-resolution x-ray images showed three main structures in human hair: medulla, cortex, and cuticle.

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

Antler velvet hair and body hair of red deer have different structures that help with protection and insulation.

Otter rabbit, mink, and blue fox fur can be identified by their unique hair structures.

Trichohyalin is modified by enzymes to form strong structures in hair cells.

Neonate scalp hair is thinner, lacks a medulla, and has smaller follicles compared to adult hair.

Mammal hairs have different internal structures.

Infrared and Raman imaging can non-destructively analyze hair structure and help diagnose hair conditions.

Stretching damages Caucasian hair's structure more easily than Asian hair.

Trichohyalin, a hair follicle protein, has a part with repeating patterns of 23 amino acids.

Two mouse mutants have defective hair cuticle cross-linking.

As sheep age, their hair fibers and follicles grow larger and more organized, with no significant differences between males and females.

Horse skin has a layered epidermis, a dermis with hair follicles, sweat and sebaceous glands, and is supplied by small arteries.

Human hair is complex and grows in cycles starting from embryonic life.

Lipids in Japanese hair help maintain glossiness and structure.

Involucrin helps strengthen the inner parts of human hair.

FoxN1 gene is essential for proper thymus structure and preventing hair loss.

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

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

Different populations have distinct hair structures related to their ancestry.