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Hormone levels in hair vary across the head, with the highest concentration of a key hormone linked to hair loss at the top.

Different oils penetrate hair differently; monounsaturated oils like olive oil penetrate better than polyunsaturated oils.

Older thin hair is not just thinner but also has different shape, structure, and stiffness.

Tea seed oil in nanostructured carriers stimulates hair growth and feels less greasy when applied.

Celery extract didn't significantly boost hair growth in the gel.

The authors agree that standardizing how PRP methods are reported could help compare results, but note that the link between PRP's contents and hair growth is unclear, and recommend avoiding split-scalp designs in future trials.

Microfluorometry effectively measures how much polymer coats and penetrates hair, useful for evaluating hair products.

The essential oils from Hedyotis corymbosa, Inula racemose, and Holostemma adakodien have significant antibacterial and antifungal properties.

Cimetidine cream shows potential for treating warts and female-pattern hair loss.

Different substances can affect how well the skin absorbs minoxidil, a hair loss drug. Caprylic acid helps the skin absorb it the best, followed by propylene glycol and water.

The vitreous membrane in hair follicles changes shape during the hair cycle and may affect hair growth and nutrient exchange.

MRI helps distinguish between pituitary adenomas and craniopharyngiomas, guides treatment for pediatric CNS tumors, and assesses rhinocerebral mucormycosis with a high mortality rate in transplanted patients.

Urea, eucalyptus oil, and menthol improve minoxidil skin absorption.

Craig Ziering created a system to classify scalp hair patterns, important for improving hair restoration surgery results.

Botulinum toxin affects hair follicles, inhibiting TGF-B1 secretion; more research ongoing.

Men need higher doses of botox than women and a different approach for facial aesthetics due to their unique facial features and muscle mass.

Pig skin is a good substitute for human skin to measure drug absorption, but differences in skin structure and enzymes across species must be considered.

The model better predicts how water-loving and fat-loving substances move through the skin by including tiny pores and hair follicle paths.

Quercetin-loaded nanoparticles protect human hair from UV-B damage.

Minoxidil's effectiveness decreases as vehicle evaporates; concentration and thermodynamic activity matter.

Cosmetics with hinokitiol-loaded nanocapsules were found to effectively promote hair growth.

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

Permanent hair removal is hard, but using longer laser pulses at lower power might improve results.

MRI can effectively image skin structures noninvasively.

Liposomes can make the antiandrogen RU 58841 more effective for skin application by reducing absorption, increasing skin retention, and targeting sebaceous structures.

Special nanoparticles increased skin absorption of hair loss treatments with fewer side effects.

Propylene glycol and ethanol increase finasteride skin absorption, sodium lauryl sulfate doesn't.

Women with aging signs and heart issues have higher hair loss risk, which may predict shorter lifespan and affect attractiveness.

Marking Nut extract in coconut oil may be an effective natural alternative for treating dandruff and promoting hair growth.

Aging causes changes in scalp cells that can negatively affect hair health.