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Hair color affects light reflection, with black hair having higher cuticle angles and lighter hair showing less specular reflection.

Plasma jet treatments can clean hair and might replace peroxide for hair care.

Non-ionic silicone emulsion best protects hair color from sunlight.

Hedgehog signaling helps keep hair follicle stem cells the same in both young and old human skin.

Androgens can cause hair growth in some areas and hair loss on the scalp.

Researchers developed a 3D model of human hair follicle cells that can help understand hair growth and test new hair loss treatments.

Different factors like pH, gel type, and chemical enhancers affect how well hydrocortisone gets into hair follicles, and less hydrated skin doesn't work well with the test method.

Tianeptine may help prevent hair loss by promoting hair growth and reducing cell death.

Hair stiffness increased by 13.2% after caffeine treatment, validating the Stiffness-Angle Law as an effective measurement method.

Wnt3a activates certain genes in hair follicle cells, including a newly discovered one, EP2, which may affect hair growth.

The herbal mixture RAA promotes hair growth and could be an alternative treatment for hair loss.

Certain mutations in the KLHL24 gene cause a skin disorder by breaking down an important skin protein.

Genes influence horse coat color and may help understand human skin conditions.

ES cells can be turned into hair follicle cells in a lab setting.

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

Rat hair-follicle stem cells can become heart cells with specific supplements.

Scientists developed a method to grow human fetal skin and digits in a lab for 3-4 weeks, which could help study skin features and understand genetic interactions in tissue formation.

miR-22, a type of microRNA, controls hair growth and its overproduction can cause hair loss, while its absence can speed up hair growth.

Hair increases in size when it absorbs water, and treatments like bleaching affect how much water it can take in.

Lykoi cats' unique sparse hair is linked to specific genetic variants in the Hairless gene.

HPV genes in mice improve ear tissue healing by speeding up skin growth and repair.

Angora goat hair growth is influenced by gene expression, sex hormones, and breed differences.

Keratin expression reflects cell organization and differentiation, not causes it.

The article concludes that the global hair trade is exploitative and reflects complex cultural and economic issues.

Hair follicle regeneration possible, more research needed.

The hair-growth formula with L-cystine helps protect and grow hair cells.

Many products for hair re-growth exist, but a perfect treatment without side effects has not yet been found.

L-arginine, hydrolysed keratin, and cystine-silanol copolymer can help protect hair from damage during and after bleaching.

Chemotherapy causes hair loss by damaging hair follicles and stem cells, with more research needed for prevention and treatment.

The document concludes that over 500 genes are linked to hair disorders and this knowledge is important for creating new treatments.