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Light scatters differently from elliptical hair fibers than from circular ones, and a new model better predicts this behavior, especially for shiny highlights.

Ionizing radiation damages human hair follicles by stopping cell growth, causing cell death, disrupting color, and increasing stress and damage markers.

Method accurately measures finasteride in tablets using finasteride-BSA interaction.

The X5 Hairlaser might help treat male hair loss, but more research is needed.

Method measures finasteride in plasma, suitable for pharmacokinetic studies.

New techniques in hair restoration surgery can fix unnatural results from old methods, improving patient self-esteem.

Hair restoration has evolved from surgery to drugs to potential gene therapy, with improved results and ongoing research driven by high demand.

Estrogen and prolactin may play bigger roles in female hair loss than previously thought.

Fat injections in the face can cause hair loss.

Overweight women with PCOS have higher levels of certain hormones that could indicate a higher risk of heart and metabolic problems.

Nonshaven follicular unit extraction is a good hair transplant option that doesn't require shaving and can transplant up to 3000 grafts daily.

FUE and FUT hair transplants have similar success rates, with FUE slightly better.

Using normal saline in vertical extraction for hair transplants reduces donor area injury more than acute extraction.

Effective repair of bad hair transplants requires skilled techniques and careful use of donor hair, with strategies like reimplantation and camouflage, and new methods to minimize scarring.

Pregnancy can cause various skin changes, including pigmentation, acne, and stretch marks, and may affect preexisting skin conditions.

X-ray microbeams can mimic cosmic rays' effects on tissue, aiding wound healing and hair growth.

Hair restoration surgery can potentially treat primary scarring alopecias, but it's important to start early medication, ensure patient remission before transplant, and monitor after surgery.

Hyaluronic acid injections can cause hair loss due to blocked blood vessels.

The new method is rapid, sensitive, and accurate for evaluating the quality of the medicinal herb Platycladi cacumen.

Substance abuse can cause various skin problems, including marks from injections, sores, premature aging, and increased cancer risk.

Short telomeres contribute to aging and cancer, and while telomerase can delay aging, it may also promote cancer.

LY320236 is a strong blocker of two enzymes that change testosterone into dihydrotestosterone and might help treat conditions related to male hormones.

Keratin proteins are consistent across different hair types from the same person.

Facial hair transplantation has improved to give natural-looking beards and eyebrows with proper technique and patient care.

Burn scars heal abnormally and more research is needed to find better treatments.

Monkeys with more anxious or inhibited temperaments tend to have less hair loss.

Narrower donor strips and special closure techniques in hair transplants lead to smaller scars and happier patients.

P-selectin is not the only factor that prevents scarring in fetal wound healing in mice.

Artificial hair fibers help treat scalp scars with few complications and a 20% yearly fiber fall rate.