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

Melanin-rich skin has unique challenges in diagnosing and treating skin diseases.

Some new treatments for children's skin conditions are effective, but risks must be weighed.

Hyperpigmentation is common in pregnancy and may not fully fade after birth; melasma, also frequent, can persist but has limited treatment options during pregnancy.

Catalase in processed meats may emit electromagnetic fields that increase cancer risk.

Laser hair removal works well for people with dark hair and light skin, but it's less effective for light hair or dark skin; improvements are expected.

Different hair removal methods have pros and cons, and more evidence is needed to prove laser treatments work.

Many elderly women experience unwanted facial hair and various hair loss conditions, with treatments available for each condition.

Hair care products don't cause hair loss if used correctly.

Four children had unmanageable pale blond hair due to uncombable-hair syndrome.

Obstetrician/gynecologists can diagnose and manage female hair loss with careful history taking and examination.

UV radiation damages hair by creating holes and peeling cuticle layers.

Chemical hair straightening significantly reduces detectable drug levels in hair.

A woman's hair turned gray and fell out after starting a cancer drug called imatinib mesylate.

People with lupus and rheumatoid arthritis have thinner hair than healthy people.

Nanostructured lipid carriers can effectively repair hair split-ends for over 3 days.

Shaving and avoiding brushing improved the patient's beard hair condition.

The Automatic Biofibre® Hair Implant is a fast and effective hair restoration method that provides immediate cosmetic benefits and good results in over 90% of cases, but requires proper care to avoid complications.

Aldactone effectively reduces hair thickness in women with excessive hair growth, both alone and with other treatments.

Finasteride and minoxidil are effective for hair loss, but continued research is needed for better treatments.

Over one-third of women experience hair loss, with female-pattern hair loss being most common, and treatments include minoxidil and possibly hair transplantation.

Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.

Hair grows faster in the morning and is more vulnerable to damage from radiation due to the internal clock in hair follicle cells.

Hair ages due to genetics and environmental factors, leading to graying and thinning, with treatments available for some conditions.

To diagnose hair loss, use a systematic approach including history, exams, and tests.

Lasers and light sources can effectively remove hair, work best on fair skin with dark hair, and usually need multiple treatments.

We don't fully understand how sunlight damages different types of hair.

Caucasian women's hair appears thickest in their 20s, with perceived thinning after mid-30s due to both decreasing density and diameter.

Two-photon microscopy helps observe hair follicle stem cell behaviors in mice.

Brain hormones significantly affect hair color and could potentially be used to prevent or reverse grey hair.