research EXPRESS: Structure Evolution in Hair Fibres During Strain and the Effect of Relative Humidity
Humidity affects hair structure changes during stretching.
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research Internal structure changes in bleached black human hair resulting from chemical treatments: A Raman spectroscopic investigation
Chemical treatments on bleached black hair change its internal structure by breaking and reforming bonds, and treatments with hydrolyzed eggwhite protein help repair it.
research Curly Hair Follicle is Sculpted by a Contracted Arrector Pili Muscle. A Hypothesis with Treatment Implications
Curly hair may be caused by a muscle contraction, and muscle relaxants might help treat it.
research Unruly hair
The document concludes that unruly hair can be congenital or acquired, often lacks specific treatments, and can be managed with oils and short hairstyles.
research Hydrolyzed Hair Keratin
research Structural change of keratin protein in human hair by permanent waving treatment
Permanent waving damages hair by disrupting its keratin structure.
research Physico-chemical properties of modern cosmetics for styling and their effect on hair structure
Modern hair styling products don't repair hair but improve its surface and stability.
research Microscopic Hair Changes Associated with Hair Coloring, Hair Waving and Hair Ironing in Iranian Women
Hair coloring, waving, and ironing cause more hair damage than not using these treatments.
research Secondary structure estimation and properties analysis of stretched Asian and Caucasian hair
Stretching damages Caucasian hair's structure more easily than Asian hair.
research J. Cosmet. Sci., 59, 203-215 (May/June 2008) �Effects of permanent waving on changes of protein and physicomorphological properties in human head hair
Permanent waving damages hair protein and weakens hair, especially with repeated treatments using sodium thioglycolate.
research Alteration in Hair Texture Following Regrowth in Alopecia Areata
Alopecia areata caused a boy's hair to regrow straight instead of curly, but the exact reason is unknown.
research Permanent Hair Styles (“Perms”)
Perms can damage hair and scalp, so proper assessment and care are essential.
research Internal structural changes in age‐related curved hair due to cyclical extension: An IR spectroscopy study
Age-related hair curvature increases due to internal structural changes from grooming.
research Improved two‐dimensional electrophoretic mapping of Japanese human hair proteins; application to curved and straight Japanese human hairs; and protein identification by MALDI MS and MS/MS quadrupole time‐of‐flight mass spectrometry
The study found that minor protein differences between curved and straight Japanese hair are unlikely to significantly affect hair structure.
research Chemical bonds and hair behaviour—A review
Disulfide bonds are crucial for hair's strength, especially when wet.
research Hair Styling: Technology and Formulations
Hair styling products and tools help improve hair's look and manageability but can damage hair if used incorrectly.
research Development and sensory analysis of shampoo for curly hair
The shampoo effectively defines and models curls while reducing frizz and volume.
research Development of a three‐point cantilever bending technique to study the mechanical properties of hair styling ingredients
The technique helps measure how hair styling ingredients affect hair's stiffness and flexibility.
research Cross-Sectional Study of Hairline Shape among the Idoma People of Benue State, Nigeria
Most Idoma people have a curved hairline due to genetics.
research The effect of various cosmetic pretreatments on protecting hair from thermal damage by hot flat ironing.
Polymeric pretreatments can significantly reduce hair breakage and damage from hot flat irons.
research Not always “straight ahead” – A surprising cause of acute kidney injury
Hair straightening treatments can cause serious kidney damage, especially if you have skin issues.
research Biomechanics of chemically treated hair for continuous 1D strands
NaOH treatment improves hair strength and suitability for textiles.
research Acquired progressive kinking of the hair following COVID‐19 disease
COVID-19 can cause hair to become progressively kinked.
research Hair curvature: a natural dialectic and review
The document concludes that hair curvature can be explained by the growth patterns caused by the shape and separation of cells in the hair follicle and is affected by specific molecular pathways.
research Permanent Hair Waving
Permanent hair waving uses chemicals to create long-lasting curls.
research Analysis of structural changes in permanent waved human hair using Raman spectroscopy
Permanent waving weakens hair by altering its protein structure.
research Hair straightening and acute kidney injury: a case series from a medical toxicology service
Hair-straightening products with glyoxylic acid may cause kidney damage.
research Specific repair of aging hair keratin
A new keratin treatment can strengthen and protect aging hair.
research Keratin network modifications lead to the mechanical stiffening of the hair follicle fiber
Changes in keratin make hair follicles stiffer.
research 퍼머넌트 웨이브 시술 시 중간세척 과정에 따른 컬 형성력과 손상도
For best curls and hair health, use keratin and ceramide after rinsing, or skip rinsing for stable curls.