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Environmental factors like temperature and nutrition affect hair growth, with humans showing seasonal hair growth differences.

Scientists created a model using sheep cells to study hair root formation, which can test how different substances affect hair growth.

Adding human hair to clayey soil makes it stronger, even after freeze-thaw cycles, and is eco-friendly and cheap.

Angora goat hair grows faster and produces more protein than cashmere goat hair, and certain hormones and nutrients positively affect hair growth and protein synthesis.

Researchers extracted tiny keratin filaments from human hair by unzipping its outer layer.

Keratin structure in hair is stable at pH 5-6 but disrupts between pH 6-7.

Yak belly hair has higher porosity and is less stiff than human hair, making it absorb dye better but less suitable as a direct substitute for hair dyeing.

Understanding how keratin structures in hair are arranged and interact is key for creating methods to extract and purify them.

A girl's severely tangled hair couldn't be fixed and had to be cut due to a rare condition called plica neuropathica.

TGF-alpha is present in sheep and ferret skin and may affect hair growth without directly stimulating cell proliferation.

Goat hair growth and follicle activity change with the seasons and differ between males and females.

PEI diffuses into hair at a constant rate, and urea speeds up this process.

Hair stiffness is higher when it has more para-like cortical cells.

Chemical treatments on bleached black hair change its internal structure by breaking and reforming bonds, and treatments with hydrolyzed eggwhite protein help repair it.

Finasteride linked to skin inflammation.

As sheep age, their hair fibers and follicles grow larger and more organized, with no significant differences between males and females.

Zinc sulphate solution was not effective in reducing the number, duration, or severity of recurrent herpes simplex infections.

Dobutamine does not mimic dopamine at therapeutic doses but may at very high concentrations; microfilaments, not microtubules, are important for wound healing in Xenopus embryos.

Recombinant keratin materials may better promote skin cell differentiation than natural keratin.

L-cysteine and ultrasound successfully improved rabbit hair fibers for industrial use.

A 66-year-old woman's thick scalp and hair loss were confirmed as lipedematous alopecia, a rare condition possibly influenced by genetics, with no effective treatment known.

Human hair structure varies by ethnicity, and certain treatments can improve hair condition and appearance.

Goat skin changes with the seasons due to genes affected by daylight and hormones.

PPD in mehendi can cause serious health problems and needs regulation.

Choose cost-effective emollients for dry skin conditions and prescribe appropriate amounts.

Cyclophosphamide effectively induces cashmere shedding in goats without affecting their overall health.

The protein Gnαs is found more in black mice than white mice and may influence their coat color.

Pseudopelade of Brocq is hard to diagnose and treat, with limited effective options.

Twisting hair weakens it, but strength can be recovered at low twist levels.

The herbal hair tonic is safe, effective for hair growth, and treats scalp issues.