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Hair color is determined by melanin produced and transferred in hair follicles.

Hair follicle size and distribution vary significantly across different body sites.

Only 40 nm nanoparticles can enter skin cells effectively for potential vaccine delivery.

β-catenin in the dermal papilla is crucial for normal hair growth and repair.

Accurate diagnosis and aggressive treatment are crucial to prevent permanent hair loss in cicatricial alopecia.

Using platelet plasma growth factors in baldness surgery can increase the number of hair follicles.

Hidradenitis suppurativa, a chronic skin disease, can be managed with antibiotics, lifestyle changes, and in severe cases, surgery. Early diagnosis and careful planning are key, and laser treatment can be an efficient solution for mild to severe cases.

Testing basal 17-HP levels is a good way to screen for nonclassic adrenal hyperplasia in women with high androgen levels.

The skin is a complex barrier for drug penetration, but understanding its structure and interactions can improve drug delivery methods.

Scientists have found a way to create hair follicles from skin cells of newborn mice, which can grow and cycle naturally when injected into adult mouse skin.

The absence of functional sebaceous glands causes hair follicle destruction and scarring alopecia.

Trichoscopy is a useful tool for diagnosing different hair and scalp diseases by their unique visual features.

The new "differential stripping" method effectively measures how much substance gets into hair follicles.

Some people with pattern hair loss may also have scalp inflammation and scarring similar to lichen planopilaris.

Mouse Notch is important for determining cell roles in hair follicles.

Hair follicles are promising targets for delivering drugs effectively.

Hair follicle stem cells can generate all hair cell types, skin, and sebaceous glands.

PRP treatment improves hair growth, and the device used can affect results, with some being more effective.

The microemulsion delivered the dye deeper into the skin than the cream.

The document concludes that specific cells are essential for hair growth and more research is needed to understand how to maintain their hair-inducing properties.

Mouse hair follicle cells briefly grow during the early hair growth phase, showing that these cells are important for starting the hair cycle.

We need more research on human hair follicle pigmentation, not just mouse models.

The conclusion is that FFA and LPP have similar scalp biopsy features, making them hard to distinguish histologically, and FFA may be a specific kind of scarring hair loss.

Particles around 100 nm can penetrate and stay in hair follicles without passing through healthy skin, making them safe for use in topical products and useful for targeted drug delivery.

Faulty Notch signalling may cause hair follicle changes and inflammation in hidradenitis suppurativa.

Folliculitis decalvans is a rare scalp condition causing scarring hair loss, treated with long-term antibiotics and other medications, but it often comes back and is hard to manage.

New micelle solutions greatly improve skin delivery of certain antifungal drugs.

Hair color production is closely linked to the active growth phase of hair in mice and may also influence hair growth itself.

The document concludes that hair is complex, with a detailed growth cycle, structure, and clinical importance, affecting various scientific and medical fields.

Human sebum can cause acne by clogging pores.