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Sheep wool follicles absorb different amino acids at various rates and locations, which could affect wool growth based on diet and genetics.

Wool and hair fibers absorb moisture similarly due to their keratin structure, with the amount of non-crystalline areas affecting the moisture uptake.

Lambs fed a liquid diet showed abnormal wool and skin, which improved with more B-vitamins, suggesting a link to B-vitamin deficiency.

Higher potassium intake may protect against hair loss and liver fat in lysine-deficient rats.

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

Saw palmetto supplements may modestly improve hair regrowth with few side effects, but more research is needed.

UV radiation damages hair by creating holes and peeling cuticle layers.

A hormone linked to collagen helps hair grow back in mice after chemotherapy, and may also prevent bone loss.

Proteins like BSA and keratin can effectively style hair and protect it, offering eco-friendly alternatives to chemical products.

Human hair keratins can form stable nanofiber networks that might help in tissue regeneration.

Chinese medicine may help hair growth and reduce hair loss in androgenetic alopecia.

Lipids in Japanese hair help maintain glossiness and structure.

A herbal extract may help treat certain types of hair loss by reducing a specific gene's activity.

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.

Most hair loss in children is caused by a few common conditions and is easy to diagnose, but rare types require careful evaluation.

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

The industry should promote pure luxury hair fibers, improve technology, and diversify products to support growers and ensure sustainable use.

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

Tying a knot can measure hair friction, useful for medical applications.

The document concludes that cosmetics need biocompatible, eco-friendly ingredients due to aging populations and demand for effective products.

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

UVB radiation changes the chemical makeup and dries out human hair but doesn't alter its appearance or texture.

Vegetable protein lowers cholesterol and protein deficiency can cause health issues.

Hair straightening can damage hair and pose health risks, including exposure to carcinogens and hair loss.

Redenyl lotion effectively promotes hair growth and improves quality of life for androgenetic alopecia patients.

Good feather growth in poultry needs the right balance of proteins, amino acids, minerals, and vitamins.

Hair and wool strength is affected by the number and type of bonds in their protein structures, with hair having more protein aggregates than wool.

Permed hair degrades faster and shows more damage after protease treatment compared to untreated hair.

Using an enzyme and keratin treatment can significantly repair and strengthen damaged hair.

Miliacin with polar lipids helps hair growth and improves hair loss in women.