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This study identified an optimal sulfate-free and silicone-free conditioning shampoo formulation using 1% hyaluronic acid at 800 kDa, 10% acidic sophorolipid, and 1% sodium chloride, which maintains essential conditioning and cleansing properties without compromising on performance.

This study concluded that bleach treatment partly transforms the hydrophobic top layer of human hair cuticles into a hydrophilic surface with clustered cysteic acid, visualized at the nano-scale using dynamic Chemical Force Microscopy.

This study found that choosing appropriate fabrics for hats and caps enhanced protection against sun damage and air pollution for hair in construction and manufacturing workers.

This paper reviews various aspects of hair care products, including formulations, regulations, categories, and safety, without reporting new clinical findings.

This study found that permanent waving treatment partially disrupts the α-helical structure in human hair microfibrils, primarily during the initial reduction phase, rather than just affecting disulphide bonds.

This study found that an enzymatic method effectively identified chemical treatments like perming and dyeing by detecting higher degradation in treated hair compared to untreated hair.

In this study, the relaxed overhand knot method demonstrated its effectiveness in measuring the self-friction coefficient of single hair fibers, revealing that sodium hydroxide treatment significantly increases friction and could aid microsurgical applications.

This study developed an organic hair conditioner using chitosan-thiadiazole conjugates that showed improved hair detangling, moisture retention, and protection without causing irritation, promising an environmentally sustainable approach to hair care.

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

This study observed that repeated perm treatments decrease disulfide bonds in hair due to their conversion largely into cysteic acid, affecting the waving efficiency depending on the reduction agent used.

This article discusses hair care practices and hair cosmetics in managing alopecia but reports no new clinical findings; it emphasizes the importance of scalp health and good patient-physician communication.

This study found that alkali bromide solutions are absorbed into hair depending on salt activity, and the presence of the salt increases water absorption compared to normal conditions.

This study found that hair membrane fluidity is low in the cuticle but high in the cortex and medulla, with treatments like ionic surfactants and oleic acid increasing fluidity in hydrated hair; however, dehydration significantly reduces fluidity throughout the hair.

This study reports that six shampoo brands in Saudi Arabia generally comply with the national specifications, demonstrating good physicochemical properties such as foam stability and pH levels.

This study found that photochemical and cosmetic chemical oxidation of hair causes surface damage by delipidation and acid formation, which can be characterized and quantified using microfluorometry and X-ray photoelectron spectroscopy.

This study found that water hardness metals like calcium and magnesium can stiffen hair fibers, reduce combing forces, and affect style retention, with varied effects on virgin and bleached hair.

This study investigated the ability of a human hair keratin dimer to absorb the pollutants diclofenac and perfluorobutane sulfonate, finding high binding affinities that suggest potential for hair-derived materials in water filtration technologies.

This study found that shampoo and conditioner do not alter hair's molecular structure, while perming treatments significantly affect keratin and intermediate filament structures due to bond alterations.

This study showed that keratinase pretreatment effectively reduces the time for enzymatic unhairing in bovine hides by opening channels for faster penetration, which shortens the process by over 50% and enhances leather quality.

This study found that the viscosity of silicone oil in hair treatments significantly affects wave curling performance and hair damage, with untreated and chemically treated hair showing different optimal viscosities.

This study found that Polyquaternium-87 significantly reduced friction forces on hair surfaces treated with various shampoo formulations, highlighting its potential for improving hair care products.

Cold waving solutions quickly reduce cystine to cysteine in hair.

In this study, researchers identified two mechanisms of lipid loss from hair when exposed to surfactants, with the mechanism depending on the lipid's hydrophobicity.

Several companies launched new hair care ingredients in 2011 to improve conditioning, color retention, combability, and heat protection.

This study found that polyquaternium-68 at pH 9 achieved the greatest hair deposition, while polyquaternium-44 demonstrated the best wash resistance at pH 6.

This study found that different decontamination protocols caused varying levels of cuticle damage in hair, with aqueous buffer treatment resulting in the most substantial degradation.

This article reviews the current practices and interpretations of research data on permanent waving and hair straightening, but does not present any new research findings.

A simple wash test can help differentiate between two types of hair loss, and dermatoscopy should be used for further clarification.

In this study, researchers developed a new wound dressing material using chemically modified Isabgol with antibacterial properties, which showed promising biocompatibility and effectiveness in managing chronic wounds by preventing infections and maintaining a moist environment.