research Changes in Structure and Geometric Properties of Human Hair by Aging
Older people's hair becomes less shiny because it gets more uneven and curved.
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research A Review on Forensic Toxicological Analysis of Drugs in Hair Using Various Instrumental Techniques
Hair analysis is better than urine and blood for detecting past drug use.
research Local Structure of Human Hair Spatially Resolved by Sub-Micron X-Ray Beam
Human hair has a new region with ordered filaments and the cuticle contains β-keratin sheets.
research Effect of Shampoo, Conditioner, and Permanent Waving on the Molecular Structure of Human Hair
Perming significantly changes hair's molecular structure, while shampoo and conditioner do not.
research Porosity at Different Structural Levels in Human and Yak Belly Hair and Its Effect on Hair Dyeing
Yak belly hair has higher porosity and is less stiff than human hair, making it absorb dye better but less suitable as a direct substitute for hair dyeing.
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