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The research found that postmortem root bands in hair are likely caused by the breakdown of a specific part of the hair's inner structure after death.

Curly hair breaks due to mechanical damage and environmental factors, not chemical makeup, and needs ongoing care to prevent breakage.

Melanin density affects hair color, and this method can help in cosmetic assessments and diagnosing hair diseases.

The conclusion is that substances can penetrate hair fibers through multiple pathways, including both the cell membrane complex and the non-keratinous parts.

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.

The torsional method effectively evaluates hair damage and the performance of hair care ingredients.

Stretching damages Caucasian hair's structure more easily than Asian hair.

Lipids are crucial for healthy hair, protecting it from damage and breakage.

Hydrogenated palm oil repairs and conditions damaged hair by preventing swelling.

Bleaching hair increases cysteic acid levels in a predictable way.

Chemical hair straightening improves smoothness and shine but may cause side effects, suggesting a need for safer methods.

UV radiation significantly damages hair, especially with humidity, making it more vulnerable to further damage.

Silicone pretreatment protects hair from damage and reduces color fading without interfering with bleaching or dyeing.

Calcium fatty acid deposits found in human hair can change its appearance and feel.

Understanding how keratin structures in hair are arranged and interact is key for creating methods to extract and purify them.

Small amounts of DNA can be found in the hair shaft, especially near the root, but it decreases with hair treatments and washing.

Treatments improved hair surface and scale structure but didn't increase certain bonds in the hair cortex.

Repeated dyeing and shampooing cause hair color loss and damage.

Frequent hairdryer use may worsen hair fragility in people with Pili Annulati.

Elkonyxis, a rare nail condition, improved when patients stopped their nail-picking habits.

Teratoma hair is similar to scalp hair but has a rougher surface and lower adhesive force.

Hair increases in size when it absorbs water, and treatments like bleaching affect how much water it can take in.

PepACS offers a safer, eco-friendly way to perm, dye, and repair hair.

Anatolian native goat down-hair is similar to cashmere and can be used for high-quality textiles.

The enzymatic method can effectively identify chemical treatments on hair.

Alkaline hair relaxers damage hair, but cationic and non-ionic polymers can help reduce this damage.

Hair is a complex organ, and understanding its detailed structure and growth phases is crucial for analyzing substances within it.

Older thin hair is not just thinner but also has different shape, structure, and stiffness.

The document explains how hair is studied in forensics to identify its source and its role in criminal investigations.

Body hairs can be used in forensic science and toxicology like scalp hair.