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Hair coloring and bleaching can permanently break down hair protein and temporarily change its properties.

Straightening and dyeing damage hair structure.

Ozonated water damages hair structure and proteins.

Ethyl glucuronide levels in hair can change when exposed to artificial sunlight, depending on hair color and thickness.

Relaxers straighten African hair by breaking down its helical structure using strong bases.

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

Small KP peptide improves hair without reducing agents, while larger proteins need them for better results.

The automated flat iron can permanently straighten hair without chemicals, especially at 154°C, and silicone improves the results.

High temperatures and cosmetic processes can damage hair keratin, affecting its structure and strength.

Ferulic acid and resveratrol protect hair from chemical and sun damage.

Oxidized hair can naturally regain strength and stability over six months.

Hair's structure and properties change with pH; acidic pH maintains strength and less swelling, while alkaline pH increases water content and swelling.

Lower pH straighteners change hair more but weaken it.

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

Prolactin affects when mice shed and grow hair.

Prolactin affects when mice shed and grow hair.

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

The KRTAP15-1 gene affects cashmere fiber thickness in goats.

A newly found RNA in Cashmere goats may play a role in hair growth and development.

Keratin-based particles safely improve hair strength, smoothness, and heat protection.

Polymers help reduce damage and improve bleached hair when used during or after bleaching.

Dermal papilla cells are key to fine wool growth in sheep.

Adding human hair to cement can make it tougher and better insulated but also more porous.

Squid ink melanin nanoparticles create a safe, long-lasting black hair dye that protects hair and offers UV protection.

miR-31 regulates hair growth by controlling gene expression in hair follicles.

Holes in mature hair are likely caused by the removal of substances during hair care.

Fusion proteins can protect hair from heat damage.

Heat worsens damage in chemically treated hair, especially bleached and straightened hair.

Lasers can reduce hair growth but may also damage skin.

Researchers created hair-inducing human cell clusters using a 3D culture method.