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Both a lock of hair and a single hair strand can show chronic drug use, but at least six single hairs are needed for accurate results.

Hair testing can detect a single GHB exposure, useful for documenting sexual assault.

Coconut oil makes hair stronger and more flexible than mineral oil.

Curly hair's strength and flexibility vary with moisture and temperature.

The creams are safe for pubic hair removal with minor, temporary skin irritation.

Wait 4-5 weeks after drug use before hair testing and cut hair into three segments to confirm single drug exposure.

A new method can quickly and accurately detect drugs in hair.

A new type of pachyonychia congenita linked to a specific keratin gene mutation was found in two Pakistani families.

Vitamin supplements may not improve hair thickness or density in patients with non-scarring hair loss.

Ferritin and vitamin B12 deficiencies are common causes of hair loss in women aged 18-45.

Organoid technology is improving personalized medicine by better predicting drug responses and treatments.

Zinc supplements improved symptoms in a Uyghur infant with a rare genetic disorder affecting zinc absorption.

A man with HIV had hair loss due to syphilis, which improved after penicillin treatment.

The combined extracts of Moringa and Pandan leaves significantly promote hair growth.

Animal hair fibers like wool and mohair are strong when dry, but vicuna fibers are very brittle.

Gastroparesis may cause hair loss due to micronutrient deficiencies, and multivitamins might help.

A Jordanian family with Clouston syndrome has a common GJB6 gene mutation.

Human skin cells contain Protease Nexin-1, and male hormones can decrease its levels, potentially affecting hair growth.

17α-estradiol is a safe estrogen that might protect the brain and doesn't cause feminization, needing more research for treating brain diseases.

Exercising women should be screened for anemia due to its prevalence and impact on performance.

New medicines that block a specific pathway are showing promise for treating severe hair loss but need more testing for safety and effectiveness.

The best mix for a hair loss treatment cream is 10% Sophora japonica tincture and 5% Serenoa repens extract.

A male with aromatase deficiency improved bone health with estradiol treatment.

Human hair shows promise for non-invasive medical testing, but more research is needed to standardize its use.

Genetic factors affect hair loss, and molecular testing may help predict, diagnose, and treat it.

Hair follicle regeneration is possible but challenging, especially in humans, due to the need for specific cells and a better understanding of how they signal growth.

A 6-group hair classification is more reliable for drug testing than an 8-group system.

Zolpidem shows up in hair from the top back of the head after one dose and fades over time, suggesting it gets into hair through blood and sweat.

Eyebrow hair transplants in patients with frontal fibrosing alopecia may look good at first but often lose the new hair after a few years.

Researchers improved a method to more accurately estimate when and how long a drug was taken using hair analysis.