research The science of color: How chemical dyeing processes transform hair structure
Oxidative dyes damage hair more than semi-permanent dyes, but new technologies help protect hair while coloring.
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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 Bleached Hair as Standard Template to Insight the Performance of Commercial Hair Repair Products
K18® and Olaplex® both effectively repair bleached hair, improving its strength, smoothness, and overall health.
research Effective Penetration of the Oxidized Keratin‐Rebonding Materials Into Hair Shafts Based on Charge Conversion
Charge-conversion chemistry improves hair-rebonding by enhancing penetration and strength.
research The science of color: How chemical dyeing processes transform hair structure
Oxidative dyes damage hair more than semi-permanent dyes, but new technologies help protect hair while coloring.
research The Viscoelastic Properties of Chemically Modified alpha-Keratins in Human Hair
Chemical modifications can alter hair's stability and flexibility, with hydrophobic interactions helping maintain structure in humid conditions.
research The Interaction of Hair Fibers with Alkali Bromide Solutions
Hair absorbs alkali bromide salts and water, affecting its structure, with absorption decreasing at higher temperatures.
research Ceramic flat irons: Improper use leading to acquired trichorrhexis nodosa
Improper use of ceramic flat irons can cause severe hair damage.
research New pattern hair loss in young Turkish women; What's wrong in their daily life?
Frequent use of hair straighteners can cause hair loss similar to scarring alopecia in young Turkish women.
research Effects of chemical structures of polycarboxylic acids on molecular and performance manipulation of hair keratin
A non-toxic formula using polycarboxylic acids strengthens and improves hair.
research Structural Changes of Hair Keratin by Reduction, Heat and subsequent Oxidation Treatments
DTDG in hair treatments reduces damage and preserves hair structure.
research The Effect of Intermediate Treatment Using Natural Polyphenol Cross-linker on Perming Efficiency and Hair Protection
Using natural polyphenol cross-linkers like tannic acid and green tea extract in perm treatments improves curling and protects hair.
research Hydrolyzed Hair Keratin
research Action of Thioglycolic Acid and L-Cysteine to Disulfide Cross-Links in Hair Fibers during Permanent Waving Treatment
Thioglycolic acid and L-cysteine change hair structure differently during perms, affecting hair strength and curling efficiency.
research The Degradative Characteristics of Hair in The Water Samples with Altered pH
Hair fibers degrade and change color in very basic water.
research Hair colouring systems delivering colour with reduced fibre damage
Using chelants in hair dye reduces fiber damage by preventing harmful radicals.
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 Determination of Cystine and Cysteine in Altered Human Hair Fibers
Cold waving solutions quickly reduce cystine to cysteine in hair.
research Hair care products: waving, straightening, conditioning, and coloring
Proper haircare and communication with doctors are key to managing hair loss and avoiding damage.
research A Study on Hair Damage Following the Change of Treating Treatment Procedure when Iron Permanent is Treated
Applying conditioner mid-treatment reduces hair damage during perms.
research #3665 Glyoxylic acid induce crystalline nephropathy and hair-straightening products: a case report
Hair-straightening products with glyoxylic acid can cause kidney damage.
research Effects of silicone pretreatment on oxidative hair damage
Silicone pretreatment protects hair from damage and reduces color fading without interfering with bleaching or dyeing.
research Effects of Keratin Pretreatment on Damaged Hair during Perm Procedure
Keratin pretreatment improves the quality of damaged hair during perming.
research Chemical and physical treatments damage Caucasian and Afro‐ethnic hair fibre: analytical and image assays
Chemical and physical treatments like bleaching, dyeing, and UV radiation damage both Caucasian and Afro-ethnic hair.
research Effective Penetration of the Oxidized Keratin‐Rebonding Materials Into Hair Shafts Based on Charge Conversion (Adv. Healthcare Mater. 12/2026)
research Effects of Hydrolyzed Keratin Contained Treatment on the Repair of Damaged Hair
K-30 treatment restores protein and weight in damaged hair, making it similar to healthy hair.
research pH Dependence of the Coiled-Coil Structure of Keratin Intermediate Filament in Human Hair by 13C NMR Spectroscopy and the Mechanism of Its Disruption
Keratin structure in hair is stable at pH 5-6 but disrupts between pH 6-7.
research Tailored Effects of Plasma-Activated Water on Hair Structure Through Comparative Analysis of Nitrate-Rich and Peroxide-Rich Formulations Across Different Hair Types
Peroxide-rich plasma-activated water is gentler on hair than nitrate-rich formulations.
research Understanding the Effect on Hair Fibers of Coloring and Bleaching Formulations Using High Pressure Differential Scanning Calorimetry (HPDSC)
Hair coloring and bleaching can permanently break down hair protein and temporarily change its properties.
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.