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Scientists discovered a unique hair protein, KAP24.1, with a special structure, found only in the upper part of hair cuticles.

Canine claws have complex structures with different keratin types, similar to hair and nails.

The hair defect is due to abnormal inner root sheath keratinization.

A new pair of mouse keratins, 65 kD and 48 kD, are found in specific skin areas and are linked to a unique skin differentiation type.

Human nails and hair follicles have similar gene activity, especially in the cells that contribute to their growth and development.

Cat claws stay sharp by shedding their outer layer through microcracks formed during activities.

The lipid in human hair follicles acts as a barrier, similar to the skin's lipid layer.

Outer root sheath cells consistently express certain keratins influenced by their environment.

Cuticle damage doesn't affect hair's tensile strength; the cortex is responsible for it.

Lizard claws have hair-like keratins similar to those in mammals.

A wide range of proteins are integrated into the skin's protective layer.

Older people's hair cuticles get more easily damaged and lose protective oils, especially in their 40s and 50s.

Pubic hair has a thicker, more protective outer layer than scalp hair, possibly due to evolution.

The outer root sheath in hair follicles changes during growth, with different keratinization processes in its layers.

The study found nine new hair protein genes in human hair follicles.

Hair follicle stem cells are crucial for touch sensation and proper nerve structure in mice.

Tight junctions create a barrier in pig hair follicles that controls what can enter the skin.

Reptile skin hardens by layering beta-proteins on keratin.

Keratin in mouse hair follicles is complex and plays specific roles.

Krt16-deficient mice help understand skin disorders like PC and FNEPPK.

Punctate follicular porokeratosis is a skin condition with specific features seen in hair follicles.

Healthy skin prevents water loss and protects against threats.

Basal-cell epitheliomas and the pilosebaceous tract share a unique keratin, distinguishing them from other skin areas.