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Finasteride modifies 5-alpha-reductases through a two-step process, affecting inhibitor potency and possibly causing side effects.

Bleaching damages hair by reducing the quality of keratin and keratin-associated proteins.

Using natural polyphenol cross-linkers like tannic acid and green tea extract in perm treatments improves curling and protects hair.

A non-toxic formula using polycarboxylic acids strengthens and improves hair.

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

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

Disulfide bonds affect the melting behavior of hair's crystalline structure, but hair retains some stability even after these bonds are broken.

Alkaline hair relaxers damage hair, but cationic and non-ionic polymers can help reduce this damage.

Using chelants in hair dye reduces fiber damage by preventing harmful radicals.

A new method accurately measures amino acids in treated hair, showing bleaching reduces amino acids while protein treatments increase them.

Certain gene patterns in breast cancer are linked to how active hormone receptors are and could affect patient survival.

Glyoxylic acid is a safer alternative to formaldehyde for hair straightening and effectively changes hair structure.

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

A new hair perming method avoids damage and lasts longer than traditional methods.

Hair straightening methods have advanced to improve effectiveness and reduce damage, but still rely on heat and chemicals.

A new perming method is less damaging to hair and works as well as traditional methods.

The enzyme from Bacillus cereus can be used in detergents and leather processing.

Keratin can be successfully taken from human hair using a mix of choline chloride and ethanolamine.

Permanent wave treatment with thioglycolic acid changes hair structure by altering disulfide bonds.

Hair straightening changes hair structure and can cause damage if done wrong, but improvements in the methods are expected to continue.

Alkylation of human hair keratin allows for adjustable drug release rates in hydrogels for medical use.

Certain treatments can increase protein binding to natural hair but are less effective on permed hair.

Lgr5 is a marker for active, long-lasting stem cells in mouse hair follicles.

Understanding gene expression in hair follicles can reveal insights into hair growth and disorders.

Keratins are crucial for cell structure, growth, and disease risk.

Noggin is necessary to start the hair growth phase in skin after birth.

Too much Smad7 changes skin and hair development by breaking down a protein called β-catenin, leading to more oil glands and fewer hair follicles.

Prolactin contributes to hair loss by promoting hair follicle shrinkage and cell death.