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Hair bleaching causes significant damage to hair and skin.

Hair care products can cause skin irritation and allergies.

Hair product allergies are common, especially to hair dyes, and hairdressers are at higher risk.

Nickel, cobalt, balsam of Peru, fragrance mix, carba mix, and propylene glycol are common allergens causing scalp contact dermatitis.

Keratin proteins are consistent across different hair types from the same person.

Polyquaternium 7® builds up on hair, improving its look and feel, and AFM is good for measuring these changes.

Many people had severe allergic reactions to a common hair dye ingredient, causing them to seek medical care and miss work.

Conductive hydrogels show promise for medical uses like healing wounds and tissue regeneration but need improvements in safety and stability.

Dupilumab is being tested for many new skin, respiratory, and gastrointestinal conditions.

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.

Dermatologists need to know about cosmetics to help patients with skin issues and recommend safe products.

The document concludes that accurate diagnosis and treatment of scalp itch require differentiating between various conditions using a proposed five-step evaluation process.

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

The hydrogels help harvest cells while preserving their mechanical memory, which could improve wound healing.

Modified keratin binds better to hair, especially bleached hair.

Human head hair proteins can be typed into eight distinct patterns, useful for genetic and forensic investigations.

The study found that a polymer treatment changes the charge on hair surfaces, making bleached hair smoother and less porous.

Rice bran mineral extract may help promote hair growth and prevent hair loss.

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

Black henna tattoos can cause severe allergies to hair and textile dyes, and there's a need for greater public awareness and regulation.

Wild peach leaf extract improves hair strength, thickness, and shine after dyeing.

The article suggests that patients with Frontal Fibrosing Alopecia may have more contact allergies, but it doesn't prove that allergies cause the condition.

The created skin model with melanoblasts improves the study of skin color and offers an alternative to animal testing.

Testosterone affects androgen receptors and lipid storage in cells, while DHEA does not convert to testosterone or affect these receptors in the same way.

Hair regrowth was seen in 83% of children with alopecia, immune system plays a role in the condition, and various treatments showed effectiveness for hair and nail disorders.

The document explains various skin conditions and their treatments.

Low-level laser therapy helps hair growth and reduces hair loss with few side effects.

Bleaching hair changes its structure and weakens it, which is important for understanding hair damage and creating treatments.

Polydopamine is a safe, effective, and permanent hair dye that turns gray hair black in one hour.

Ethosomes improve black tea extract absorption in hair dye.