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Nanomaterials can improve hair care products and treatments, including hair loss and alopecia, by enhancing stability and safety, and allowing controlled release of compounds, but their safety in cosmetics needs more understanding.

Hair is important for protection, social interaction, and temperature control, and is made of a growth cycle-influenced follicle and a complex shaft.

The 2015 Hair Research Congress concluded that stem cells, maraviroc, and simvastatin could potentially treat Alopecia Areata, topical minoxidil, finasteride, and steroids could treat Frontal Fibrosing Alopecia, and PTGDR2 antagonists could also treat alopecia. They also found that low-level light therapy could help with hair loss, a robotic device could assist in hair extraction, and nutrition could aid hair growth. They suggested that Alopecia Areata is an inflammatory disorder, not a single disease, indicating a need for personalized treatments.

Hair growth is controlled by specific gene clusters and proteins, and cysteine affects hair gene expression in sheep.

The study found that hair fragility in Pili annulati may be caused by cavities and damage within the hair shafts.

Understanding proteins in skin structures like claws and hair is crucial for future research.

AFM can diagnose hair disorders by revealing detailed hair surface changes.

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

Four children had unmanageable pale blond hair due to uncombable-hair syndrome.

Sunlight worsens hair loss; protect scalp.

Hair care products are important for appearance and self-esteem, and choosing the right ones can help maintain healthy hair.

Keratin peptides can change hair shape gently without harsh chemicals.

The document concludes that skin stem cells are important for hair growth and wound healing, and could be used in regenerative medicine.

The model helps understand how wool fiber structure affects its strength and flexibility.

Asian hair is generally straight and thick, with unique disorders and properties, and more research is needed to understand it fully.

The article concludes that advancements in hair cosmetics require dermatologists to stay informed about products and their potential risks, including allergies and higher risks for hairdressers.

Different techniques measure hair properties to ensure cosmetic products work.

Activating c-Myc in skin causes rapid cell growth and changes, but these effects are reversible.

Hair in mammals likely evolved from glandular structures, not scales.

Human hair is made up of different keratins, some strong and some weak, with specific types appearing at various stages of hair growth.

Hair's resistance to wear varies by ethnicity and treatment, with less wear indicating stronger hair.

Certain gene mutations are linked to wool quality in sheep and could help in breeding for better wool.

Feed restriction in sheep leads to finer wool fibers but may reduce wool quality.

Keratose, derived from human hair, is a non-toxic biomaterial good for tissue regeneration and integrates well with body tissues.

Aging makes hair thinner and rougher, with less clear edges.

The modified staining method can determine the ABO blood group of hair samples accurately.

Immuno-cosmeceuticals from chicken egg yolk can effectively repair and improve damaged hair.

Hair's internal fibers are arranged in a pattern that doesn't let much water in, and treatments like oils and heat change how much water hair can absorb.

Human hair varies widely and should be classified by curl type rather than race.

Human hair has a new region with ordered filaments and the cuticle contains β-keratin sheets.