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Hair's internal fibers are arranged in a pattern that doesn't let much water in, and treatments like oils and heat change how much water hair can absorb.

Laminaria japonica and Cistanche tubulosa extracts combined may effectively promote hair growth.

Schisandra nigra extract may help hair grow by stimulating cells and preventing hair follicle damage.

Healthy scalp leads to better hair quality and less damage.

The "Two-Cell Assemblage" assay is a new, simple method to identify substances that may promote hair growth.

Mouse zigzag hair bends form due to a 3-day cycle of changes in hair progenitors and their environment.

Red deer antler extract helps hair grow by extending the growth phase and increasing cell growth in hair follicles.

Hair's resistance to wear varies by ethnicity and treatment, with less wear indicating stronger hair.

FUE megasession hair transplantation effectively treats large area hair loss with less discomfort and shorter operation time.

Uncombable hair syndrome causes frizzy hair and can affect the nervous system, eyes, and ears, often co-occurring with other hair, skin, nail, and teeth conditions, and is linked to three specific gene mutations.

Aging causes hair to gray and thin, with the timing of graying varying by race, and factors like oxidative stress and genetics can lead to hair loss.

The document concludes that understanding hair biology is key to treating hair disorders, with gene therapy showing potential as a future treatment.

Scientists made working hair follicles using stem cells, helping future hair loss treatments.

Hair growth is cyclic and influenced mainly by local factors.

Nerve signals are crucial for hair follicle stem cells to become skin stem cells and help in wound healing.

The document provides a method to classify human hair growth stages using a model with human scalp on mice, aiming to standardize hair research.

Researchers created human hair follicles using a new method that could help treat hair loss.

Wnt ligands are crucial for hair growth and repair.

Hair follicle stem cells are key for hair and skin regeneration, can be reprogrammed, and have potential therapeutic uses, but also carry a risk of cancer.

Latanoprost can make eyelashes longer, thicker, and darker.

K6hf is a unique protein found only in a specific layer of hair follicles.

Stem cells in the hair follicle are regulated by their surrounding environment, which is important for hair growth.

Ruby laser pulses best destroy hair follicles during the growth phase and effectiveness varies with laser intensity; melanin is key for targeting, and timing treatments can improve results.

The document concludes that hair is complex, with a detailed growth cycle, structure, and clinical importance, affecting various scientific and medical fields.

Male hormones and their receptors play a key role in hair loss and skin health, with potential new treatments being explored.

Grafted rodent and human cells can regenerate hair follicles, but efficiency decreases with age.

Mutant mice help researchers understand hair growth and related genetic factors.

Hair grays due to oxidative stress and fewer functioning melanocytes.

The 190-kbp domain contains all human type I hair keratin genes, showing their organization and evolution.

Prolactin affects when mice shed and grow hair.