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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.

Chemical treatments and daily stresses damage hair, especially the cuticle layer.

Hair color is determined by different melanins and changes with age.

Curly hair breaks more easily, especially with chemical treatments, but simpler grooming reduces breakage.

The research identified genes that explain why some sheep have curly wool and others have straight wool.

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

COX-2 levels change during the hair cycle and affect skin and hair growth.

Human hair varies widely and should be classified by curl type rather than race.

Proteins like BSA and keratin can effectively style hair and protect it, offering eco-friendly alternatives to chemical products.

IL-36α helps grow new hair follicles and speeds up wound healing.

About 21.3% of young, healthy Chinese men experience hair loss. Hairlines are mostly linear or have a central protrusion. Hair is densest on the top and back of the head, and hair follicles usually have 1 or 2 hairs. This information can help in designing hair restoration procedures.

STAT3 signaling is important for healthy skin and hair follicles, and its disruption can lead to skin conditions like atopic dermatitis.

Adjusting estradiol-ANGPT2 levels can promote hair growth in female pattern hair loss.

Tying a knot can measure hair friction, useful for medical applications.

Frequent use of hair straighteners can cause hair loss similar to scarring alopecia in young Turkish women.

Human hair structure varies by ethnicity, and certain treatments can improve hair condition and appearance.

The model predicts hair breakage based on key hair properties and helps product developers.

Hair can't be reliably repaired once damaged; prevention and proper product use are key to maintaining hair health.

Twisting hair weakens it, but strength can be recovered at low twist levels.

Azelaic acid micro/nanocrystals, especially with ultrasound and salicylic acid, greatly improve acne treatment.

Different techniques measure hair properties to ensure cosmetic products work.

Cosmetic procedures can harm hair, but damage can be minimized with knowledge and care; however, once hair is damaged, it cannot be reliably repaired.

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

Longer time setting curls overnight leads to better curl retention.

Hair health is influenced by genetics, aging, and environmental factors, with proper care needed to maintain it.

Hair loss can cause emotional and social issues, and various treatments, including medication, surgery, and psychological support, are needed.

Human hair's structure makes it tough and resistant to breaking.

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

DVI provides detailed 3D imaging of hair and shows how various products protect and enhance hair.

A new method helps understand hair shine and various products improve hair care.