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Growth hormone levels affect hair growth and loss, with too much causing excess hair and too little leading to hair loss.

Centipeda minima extract helps hair grow by activating important growth signals and could be a promising hair loss treatment.

Researchers developed a new method to test hair growth drugs and found that adult cells are best for hair growth, but the method needs improvement as it didn't create mature hair follicles.

Adenosine helps human hair grow and prevents hair loss by targeting specific cells.

The study found new details about human hair growth and suggests that preventing a specific biological pathway could potentially treat hair graying.

Human hair follicles produce and respond to erythropoietin, helping protect against stress.

A new method was created to measure metformin in hair, showing potential for monitoring treatment and medical investigations.

KDML105 bran extract may help with hair growth and prevent hair loss.

The gel with icariin speeds up wound healing, reduces scarring, and helps hair growth by controlling BMP4 signaling. It also reduces inflammation and improves wound quality in mice, adapts to different wound shapes, and gradually releases icariin to aid healing. It also prevents too much collagen and myofibroblast formation during skin healing.

The review concluded that keeping the hair-growing ability of human dermal papilla cells is key for hair development and growth.

VB-1, a natural compound, may promote hair growth by enhancing a key cell growth pathway.

Using polyethylenimine-DNA to deliver the hTERT gene can stimulate hair growth and may be useful in treating hair loss, but there could be potential cancer risks.

Concrete made from animal bones and human hair is stronger and more environmentally friendly than traditional concrete.

Keratin hydrogels from human hair show promise for tissue engineering and regenerative medicine.

Human hair keratins can self-assemble and support cell growth, useful for biomedical applications.

Human hair protein extracts can protect skin cells from oxidative stress.

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.

Human hair strength and health are linked to sulfur compounds that can be reduced by stress but improved with sulfur supplements.

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

The endocannabinoid system affects oil production and inflammation in skin cells.

A new painless method to collect hair follicles helps study DNA damage and aging.

The document suggests using hairpieces, wigs, and safe cosmetic techniques to hide hair loss from alopecia areata.

The study developed a method to detect minoxidil and its sulfate form, found that minoxidil sulfate is temperature-sensitive, and identified a way to potentially increase its stability for hair loss treatment.

Skin-derived stem cells grow faster and are easier to obtain than hair follicle stem cells, but both can become various cell types.

Printing human stem cells and a special matrix during surgery can help grow new skin and hair-like structures in rats.

3D-cultured cells in HGC-coated environments improve hair growth and skin integration.

Artemisia sieversiana extract may help prevent hair loss and promote hair growth.

Transplanting growing hair follicles into scars can help regenerate and improve scar tissue.

Merino wool fibers change shape with moisture, while human hair shape stays the same.

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