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Selenium disulfide shampoo effectively reduces dandruff and improves scalp health for all hair types.

Malassezia fungi in healthy noses can form a "spaghetti-and-meatballs" structure.

The big-clawed shrew's sinus hair follicles are highly specialized for sensing vibrations.

Hair transplantation showed the most promise for repigmenting white hair, especially for eyebrows and eyelashes.

Fat under the skin can help hair grow longer, darker, and increase cell growth.

The man likely has a condition causing eyelash loss and scaling on his eyelid.

A brown shadow seen in dermoscopy is a marker for lichen nitidus.

Monilethrix hair issues are due to problems in the hair's internodes.

Becker's Melanosis and Hypertrichosis mainly affects young males, causing brown skin patches and extra hair on one side of the upper body.

After calciphylaxis, rats showed incomplete skin and hair regeneration, resembling scar tissue with fewer hairs.

Brown skin in guinea pigs has more ascorbic acid and related enzymes, black skin uses ascorbic acid well, and white skin has the most protein.

The four patients have a unique type of ichthyosis affecting hair follicles.

A rare calcium deposit condition was found on a man's scalp.

Researchers found that certain lipids, especially vitamin D3, are lower in prematurely grey hair than in pigmented hair.

A 73-year-old man's grey-white hair turned dark brown after eczema treatment.

Hair cuticles remain stable and resilient under stress due to strong protein content and crosslinking.

Trichoscopy helps distinguish Lichen Planopilaris from Frontal Fibrosing Alopecia by identifying unique hair loss patterns.

Dermoscopy helps diagnose different scalp conditions by showing unique signs for each disorder.

A woman's scalp nodules were successfully treated with antifungal and anti-lice medications, revealing a rare case of mixed piedra infection.

Bleaching hair changes its structure and weakens it, which is important for understanding hair damage and creating treatments.

Grey hair is wilder, drier, and less manageable than pigmented hair.

Sensitive scalp has higher pH, more redness, abnormal sebum, and altered bacterial makeup.

The study found average numbers for different types of hair follicles in the scalp and observed differences between men and women, suggesting reasons for more common hair shedding in women.

Trichoscopy is crucial for diagnosing and managing androgenetic alopecia, showing increased vellus hairs, empty follicles, and fibrosis with severity.

The glassy layer of hair follicles has different fibril sizes and arrangements in guinea pigs and young mice.

The study found that giant pandas have more melanin in black hair follicles than white, with gene expression differences that could affect hair color and skin health.

Harp seals have different innervation patterns in their whiskers, with lateral whiskers having more axons than medial ones.

Hair count values should be standardized for each scalp region to evaluate hair disorders in Asians.

A rare scalp infection in a child developed into a kerion with additional skin symptoms.

Hair diameter difference, brown skin discoloration around hair follicles, and missing hair in certain areas are key signs of androgenetic alopecia (commonly known as hair loss) when viewed under a dermoscope.