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Human hair and skin friction vary by ethnicity, hair type, and environmental conditions.

Tying a knot can measure hair friction, useful for medical applications.

Understanding hair surface properties is key for effective hair care products.

Grape seed oil improved hair quality the most, followed by rosehip and safflower seed oils, and reduced damage from shampoo.

The Cross-section Trichometer is a new tool that can measure hair quantity and detect hair loss and growth.

The trichometer accurately measures hair growth and is easy to use.

The Cross-section Trichometer is a promising tool for measuring hair characteristics without cutting the hair and may have various clinical uses.

The trichometer is a quick and reliable tool for measuring hair quantity.

The HairCheck® device is effective for measuring hair loss and growth in people with alopecia.

Hair damage shows as fragility, dullness, and discoloration, varies by ethnicity, and is worsened by cosmetic procedures and diseases.

A device was made in 2008 to measure hair loss severity. Other findings include: frizzy mutation in mice isn't related to Fgfr2, C/EBPx marks preadipocytes, Cyclosporin A speeds up hair growth in mice, blocking plasmin and metalloproteinases hinders healing, hyperbaric oxygen helps ischemic wound healing, amniotic membranes heal wounds better than polyurethane foam, rhVEGF165 from a fibrin matrix improves tissue flap viability and induces VEGF-R2 expression, and bFGF enhances wound healing and reduces scarring in rabbits.

The nutritional supplement improved hair density and reduced hair loss in women with female pattern hair loss.

Cyproterone acetate reduced hair growth in most hirsute females and made hair softer, thinner, and lighter.

Latanoprost can make eyelashes longer, thicker, and darker.

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

New compounds were made that block an enzyme linked to breast cancer better than existing treatments.

Most low-level light therapy studies did not accurately report how light was measured, affecting treatment reliability.

Scalp cooling can reduce chemotherapy-induced hair loss and should be available in all hospitals.

Finasteride affects brain and blood steroids, causing lasting sexual and emotional side effects.

Squalene-based carriers improve delivery of a treatment to hair follicles for alopecia areata.

Iron deficiency may contribute to hair loss.

The study found that Ziziphus jujuba seeds contain beneficial compounds for treating insomnia and anxiety and that the methods used are effective for assessing their quality.

Effervescent formulations may improve minoxidil delivery, increasing effectiveness and reducing applications needed.

Psychological factors like depression may be more important than zinc, folate, and vitamin B12 levels in causing scalp pain in people with hair loss.

Hair restoration surgery has advanced, focusing on natural results and may improve further with new techniques and therapies.

Human hair keratin fibers have a detailed nano-scale structure that changes with different conditions.

The document concludes that using LC-MS/MS for measuring androgens is more accurate than older methods, but it needs careful validation and standardized references to be most effective.

Hair treatments cause significant structural changes, especially with excessive heat, regardless of ethnicity.

PRP injections help regrow hair, reduce hair loss, and increase hair thickness, but effects decrease without ongoing treatment.