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Developing hair follicles form from ring-shaped patterns, with future stem cells originating from the outer ring, not the upper layers, as previously thought.

Sheet formation is key to macrofibril structure differences in wool.

Hair casts are small structures on hair shafts with unknown causes.

Hair casts can be treated with physical removal and special shampoos.

Trichoscopy helps distinguish Lichen Planopilaris from Frontal Fibrosing Alopecia by identifying unique hair loss patterns.

Peripilar keratin casts are a helpful sign for diagnosing traction alopecia.

Hair follicles repair 3D injuries using a 2D healing process.

Keratin proteins are crucial for hair structure and strength.

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

Hair treatments cause significant structural changes, especially with excessive heat, regardless of ethnicity.

Monotreme hair structure and protein distribution are similar to other mammals, but their inner root sheath cornifies differently, suggesting a unique evolution from reptile skin.

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.

The skin has multiple layers and cells, serves as a protective barrier, helps regulate temperature, enables sensation, affects appearance, and is involved in vitamin D synthesis.

Lecithin organogels could be good for applying drugs to the skin because they are stable, safe, and can improve drug absorption.

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.

Chemical hair straighteners can severely damage hair and scalp with repeated use.

Donkey and horse hair have different microscopic structures, which can help tell them apart.

Understanding hair surface properties is key for effective hair care products.

The 2% minoxidil cream is stable, spreads well on the skin, and helps with hair growth.

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

Hair gets thinner, grayer, and changes texture with age due to genetics, environment, and cellular changes, affecting the growth cycle.

Vitamin A deficiency changes cattle hair structure, while pregnancy may improve it, suggesting hair can indicate cattle health.

The skin is vital for protection, temperature control, fluid balance, immunity, and sensing, with damage affecting daily life and mental health.

Keratin's mechanical properties are influenced by hydrogen bonds and secondary structure, and can be improved with the SPD-2 peptide.

Scientists made structures that look like human hair follicles using stem cells, which could help grow hair without using actual human tissue.

Human hair is a significant sample for various tests in clinical, nutritional, archaeological, and forensic studies.

The new CoQ10 gel protects mouse skin better against aging from UV light than the old gel.

Shrunken heads retain some facial features and hair characteristics, allowing for limited individual identification.

PGA-4HGF may help treat hair loss by activating hair growth pathways and extending the hair growth phase.

The we/we wal/wal mice have defects in hair growth and skin layer formation, causing hair loss, useful for understanding alopecia.