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Micro-needling effectively improves wrinkles, scars, and hair growth, but proper technique and safety are important.

Methylene blue staining effectively reveals detailed nerve structures in rat snouts.

The micropunctiform technique for hair restoration is safe, simple, and creates a natural hairline.

Thinning and micro-graduation techniques can effectively and reversibly correct women's hairlines.

The method helps study hair follicle stem cells and calcium signals in mouse skin.

Trichotillomania shows specific signs like black dots and uneven hair lengths but lacks certain features of alopecia areata.

Light tickling can be unpleasant and may feel worse for individuals with autism.

Rat vibrissae have sensory terminals with specific structures that help detect hair movements.

Different patterns on the scalp help diagnose types of hair loss without needing a biopsy.

Micropigmentation is a safe procedure that effectively improves the appearance of scars on the scalp and eyebrows, with most patients showing excellent or good results.

Hair follicle stem cells may help treat strokes.

Two new signs, 'signet ring vessels' and 'hidden hairs,' help tell apart scalp psoriasis and seborrheic dermatitis.

Manatee whiskers are specially adapted for touch in water.

Guasha changed rat skin appearance and blood vessels temporarily without affecting certain nerve proteins or fiber structure.

Scanning electron microscopy revealed four distinct hair root shapes in alopecia areata, suggesting a less invasive diagnostic method.

Using a mechanical pencil to hold a needle makes hair transplant surgery easier and faster.

Small white dots on the scalp seen with a dermoscope correspond to sweat ducts and vary with different hair disorders.

Hair follicle stem cells may help treat strokes.