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The document concludes that a thorough history, physical exam, and specific tests are crucial for diagnosing and managing hair loss effectively.

Rosehip extract improves hair wave, thickness, and color vibrancy.

Nanoparticles can be used to deliver drugs to hair follicles, potentially improving treatments for conditions like acne and alopecia, and could also be used for vaccine delivery and gene therapy.

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

Vesicles made of behenyltrimethylammonium chloride and stearic acid can triple the skin absorption of hinokitiol, which may help with hair growth.

Growing hairs are easier to pull out than resting hairs due to different anchorage strengths.

Minoxidil promotes hair growth but exact mechanism is unknown.

Mouse zigzag hair bends form due to a 3-day cycle of changes in hair progenitors and their environment.

Cadmium chloride pollution can cause skin disorders, speed up aging, and prevent hair growth.

Crossbreeding improves goat fiber quality, and specific genes affect hair traits and color.

Shampoo B, which uses water-soluble silicone, is better at detangling hair in wet conditions due to its two-layer conditioning film.

Washing hair daily is better and preferred, with no negative effects.

Heat transfer in hair is slower in groups of hair, increasing the risk of damage from high-temperature styling tools.

Genetically modified sheep with more β-catenin grew more wool without changing the wool's length or thickness.

Changing hairstyles can help hair regrow in children with hair loss from tight braids or ponytails.

The document concludes that hair follicles have a complex environment and our understanding of it is growing, but there are limitations when applying animal study findings to humans.

Naked hair shafts are significantly associated with scarring hair loss and may help diagnose it, especially when multiple are found.

Using cetirizine on the skin and taking vitamin D can help increase hair growth in children with hair loss from ectodermal dysplasia.

Trichotillometry is a reliable method to measure hair strength and assess hair loss treatments.

Chemical treatments on bleached black hair change its internal structure by breaking and reforming bonds, and treatments with hydrolyzed eggwhite protein help repair it.

Elkonyxis, a rare nail condition, improved when patients stopped their nail-picking habits.

A 12-year-old boy with a rare genetic condition has progressive hair loss with no effective treatment.

Certain transcription factors are key in controlling skin stem cell behavior and could impact future treatments for skin repair and hair loss.

New biopsy techniques and tools improve alopecia diagnosis, and both too much and too little selenium can cause hair loss.

Tree leaves and lichens can effectively indicate air pollution levels in cities.

Synthetic polypeptides in cosmetics may help with anti-aging, but their effectiveness on real skin is uncertain.

Sodium silicate helped mouse hair grow similarly to a known hair growth treatment.

Stress, nutritional issues, and chronic diseases can cause hair loss, and nail changes may signal internal diseases; treatment focuses on the underlying cause.

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

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