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Bleaching hair removes its protective top layer and exposes more hydrophilic groups, changing its chemical surface and affecting how it interacts with products.

Hydrogen peroxide and monoethanolamine in hair dye can cause dermatitis and hair loss.

Moisture content significantly affects how human hair breaks.

The document explains hair biology, the causes of hair loss, and reviews various hair loss treatments.

Hair thinning and loss in a girl with a rare metabolic disorder was linked to her condition.

The document explains how to identify different hair problems using a microscope.

Treat scalp and beard fungal infections early with oral antifungal medication and sometimes topical therapy, avoiding unnecessary allergy tests and surgery.

Two specific hair keratin genes are active during hair growth and decline as hair transitions to rest.

The arrector pili muscle might play a role in hair loss and needs more research to understand its impact.

PDI helps restore over-bleached hair's strength and structure by attaching special peptides.

Hair fibers interact through classical forces, which are influenced by treatments and products, important for hair care and other applications.

Researchers found that bulge cells from human hair can grow quickly in culture and have properties of hair follicle stem cells, which could be useful for skin treatments.

Researchers developed a method to grow hair follicle cells for transplantation using a special chip.

Researchers found a new gene, hacl-1, that is active in mouse hair follicles during hair growth and may be important for hair biology.

Hair sunscreens are important for maintaining hair's cosmetic value.

α-type filaments in guinea pig hair follicles have unique structural features.

UV radiation and visible light can damage hair, but there are ways to protect it.

Removing external lipids from hair reduces moisture and increases strength, while removing internal lipids decreases water permeability.

Hair and nails are similar keratin structures with different shapes and growth, affected by the same diseases and environmental factors.

Good haircare and communication with doctors are key for managing hair loss.

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

Ruby laser hair removal significantly reduces hair density.

Thioglycolate lotions are the most popular method for permanent waving and hair straightening.

The hair follicle bulge is an important area for adult stem cells involved in hair growth and repair, with potential for medical use needing more research.

Hair shaft dysplasias are abnormal hair conditions that can be inherited or acquired and may signal other health issues, with limited treatment options available.

Rectangular black granules, solitary yellow dots, and mostly single-hair follicles suggest Loose Anagen Hair Syndrome.

Animal models are crucial for learning about hair loss and finding treatments.

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

Light scatters differently from elliptical hair fibers than from circular ones, and a new model better predicts this behavior, especially for shiny highlights.

The herbal cream was found to be a safe and effective alternative for hair growth, similar to minoxidil.