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

Eating collagen peptides may help with skin and hair growth.

Cysteine helps maintain keratin production in skin cells even when iron is low.

Copper and iron cause keratin damage in hair by converting methionine to homocysteine.

Keratin structure in hair is stable at pH 5-6 but disrupts between pH 6-7.

CMADK reduces hair damage from bleaching and permanent waving.

The supplement with amino acids, iron, selenium, and marine hydrolyzed collagen improved hair growth more than drug treatment alone, with most people tolerating it well.

Genetic mutations that disrupt homocysteine breakdown lead to increased damage in mouse hair keratin.

Using enzymes to link proteins makes hair repair treatments more effective and long-lasting.

Placenta products might help with hair loss, but more research is needed.

Cynatine HNS improves hair and nail quality in 90 days.

The effectiveness of reducing agents on hair fibers depends on their electrode potentials.

The document concludes that hair loss is influenced by genetics and other factors, and while treatments like finasteride can help, they have limitations and side effects.

Different countries have regulations to ensure the safety of hair care products, with some recalling hair straighteners due to high formaldehyde.

Mf-rich hair degrades more than Ma-rich hair, especially with Proteinase K.

A new hydrogel with stem cells from human umbilical cords improves skin wound healing and reduces inflammation.

AP collagen peptides improve hair elasticity and gloss.

Understanding keratinization is crucial for treating skin conditions like ichthyoses and psoriasis.

Cold waving solutions quickly reduce cystine to cysteine in hair.

Different ethnicities and treatments affect human hair strength and structure.

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

Understanding hair biology is key to developing better treatments for hair and scalp issues.

Parathyroid hormone-related protein helps control hair growth phases in mice.

Permanent waving weakens hair by altering its protein structure.

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.

Human hair has more unsaturated fats inside than on the surface, and certain lipids may help bind the outer and inner layers together.

Outside factors like grooming, chemicals, and the environment can damage hair and cause disorders.

Using both TGA and DTDG in hair straightening reduces hair damage compared to using TGA alone.

Proper hair care and safe use of hair products are crucial for those with hair loss.

The document concludes that new treatments for hair loss may involve a combination of cosmetics, clinical methods, and genetic approaches.