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Hair and nail cells share similar proteins, indicating a common differentiation pathway.

Estrogen Receptor ß (ERß) is the main hormone controller in human skin and hair follicles, not Estrogen Receptor α (ERα) or the Androgen Receptor (AR).

Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.

Medium lipophilic substances penetrate skin best, and adding ethanol can increase delivery to hair follicles.

Trichohyalin is also found in the outer layers of normal human skin.

Genetic mutations can cause hair growth disorders by affecting key genes and signaling pathways.

Minoxidil and ATRA together boost hair growth more effectively than minoxidil alone.

Minoxidil and retinol together help hair grow.

Annurca apple supplement safely increases hair growth and keratin in humans.

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

Mobile phone radiation may cause DNA damage in human ear hair follicle cells.

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

Bleaching and combing damage hair's surface and mechanical properties.

Scientists found out how a specific protein in human hair cuticles behaves and is structured.

The study developed a method to analyze ancient hair proteins using very small samples.

TR3 is mainly found in hair follicle stem cells and may be involved in hair loss.

Reducing FOXA2 in skin cells lowers their ability to grow hair.

UVB radiation changes the chemical makeup and dries out human hair but doesn't alter its appearance or texture.

Researchers identified genes in scalp hair follicles that may affect hair traits and hair loss.

Hair stiffness increased by 13.2% after caffeine treatment, validating the Stiffness-Angle Law as an effective measurement method.

The gene Foxn1 is important for hair growth, and understanding it may lead to new alopecia treatments.

The research found that certain microRNAs are important for human hair growth and health.

CMADK reduces hair damage from bleaching and permanent waving.

Botulinum toxin type A reduces itch and inflammation from histamine and may help treat certain skin conditions and hair loss.

Low fluence photoepilation temporarily removes hair by targeting the hair follicle's pigmented area without severe damage.

Hair sensitivity to androgens is partly controlled by specific enzyme expressions in different hair areas.

Hedgehog signaling helps keep hair follicle stem cells the same in both young and old human skin.

Bone marrow and umbilical cord stem cells can help grow new hair.

Wnt3a activates certain genes in hair follicle cells, including a newly discovered one, EP2, which may affect hair growth.

Researchers created early-stage hair-like structures from skin cells, showing how these cells can self-organize, but more is needed for complete hair growth.