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Different ethnic hair types have unique nanoscopic and molecular features despite having the same basic keratin structure.

The "Opus-5" diode laser is effective for treating oral submucous fibrosis.

The interdigital gland in crossbred sheep is similar to skin and has specialized structures for secretion.

A giant blue nevus on the scalp can cause hair loss and may damage underlying structures.

Hair keratins are mainly on macrofibrils in the cortex and in the endocuticle in the cuticle.

Oral minoxidil can potentially increase hair growth in people suffering from Central Centrifugal Cicatricial Alopecia.

Argentine-cross polo ponies commonly develop sarcoid tumors with distinct types and histopathological features.

Forehead creases are formed by a tight connection between the skin and muscle through dense fibers, with changes in skin thickness and fewer skin appendages near the creases.

Selenium and zinc deficiency in sheep leads to thyroid and skin problems.

A woman had skin and hair issues after a botulinum toxin injection.

Frontal fibrosing alopecia causes hair loss at the front hairline, and no effective treatment exists.

Temporal triangular alopecia is a lifelong condition with hairless patches on the side of the head that may be present from birth.

Microneedling showed slight improvement in hair loss but no major changes in hair follicles or scalp condition.

Hair fibers may have a unique, non-protein sheath not previously identified.

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

Marsupial hair structure and keratin distribution are similar to placental mammals.

The connective tissue around hair follicles changes structure throughout the hair cycle.

Trichilemmal keratinization is a unique process in hair follicles where the outer root sheath turns into keratin without a specific layer.

Monotreme hair structure and protein distribution are similar to other mammals, but their inner root sheath cornifies differently, suggesting a unique evolution from reptile skin.

Sheet formation is key to macrofibril structure differences in wool.

Mature hair surfaces are formed by keratinized cells with developed layers, not just modified plasma membranes.

Keratin fibrils in hair form and stop growing at specific points in the follicle.

The hair follicle's connective tissue is a key source of a certain collagen in human scalp skin.

The hair follicle dermal sheath is essential for hair shedding and needs to communicate with the outer root sheath for normal hair growth cycles.

Trichohyalin granules help inner root sheath cells in hair follicles harden by integrating with keratin filaments.

A tough membrane between the outer and inner layers of human hair protects it from damage.

Trichilemmal cysts may form from hair follicle outer root sheath growth.

A hair cyst can become cancerous, showing specific keratins from the hair sheath.