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This study suggests that higher use of phytoestrogen-containing hair and personal care products may increase the association between permanent hair dye, straightener use, and breast cancer risk in black women.

This review discusses advances in nanomaterial-based wound dressings for infection control, highlighting their ability to detect and treat bacterial infections effectively, but reports no new clinical results.

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 observed that lipids in human hair accumulate in specific areas and do not significantly impact water permeability, highlighting the utility of AFMIR for studying complex biomaterials.

This study found that using a shampoo containing heat-killed probiotics, GMNL-653, led to decreased dandruff and sebum production and increased hair growth in human participants, with observed microbiota shifts including changes in M. globosa and M. restricta abundance.

In this study, researchers highlighted that while hair lipids are crucial for hair health and protection, surfactants in shampoos and conditioners can partially remove these lipids, potentially affecting hair structure, though the exact mechanisms remain poorly understood and require further investigation.

This article provides guidelines and indices for a three-point cantilever bending test to measure mechanical properties of hair treated with both conventional and naturally-derived styling polymers, reporting no new experimental results.

This study found that chemically treated hair, particularly when subjected to both acid straightening and bleaching, experiences more significant structural damage when exposed to heat, highlighting key changes in both the internal and surface components of hair fibers.

This study from years of treating hair loss in Japan reported various treatment outcomes: some patients showed improvement with manual treatment alone, others with added finasteride, some did not respond to either, and some maintained benefits even after stopping finasteride.

In this study, reducing agents like ammonium thioglycolate, L-cysteine, and sodium sulfite in shampoo effectively decreased hair flyaway and frizz without causing damage, as no critical hair damage was observed in structural and tensile strength assessments.

This article reviews how biopolymers are utilized in cosmetics, highlighting their biodegradable and non-toxic properties, recent structural developments, novel applications, and safety considerations in the formulation of skin, hair, and oral care products.

This study found that hair dyed with anionic basic hair dye lost more color after shampooing compared to cationic and nonionic dyes, with alkaline shampoo increasing this effect.

This study evaluated a levan-based polysaccharide, POLEVAN®, in shampoo formulations and reported that it significantly increased hair glossiness by 24%, allowed a reduction of surfactant content by up to 50% without affecting foam, and maintained scalp moisturization similar to hyaluronic acid in a clinical setting.

This study reported that peanut callus extract, rich in resveratrol, significantly stimulated hair growth and reduced hair loss in an in vitro model and a clinical trial, showing promise as a cosmetic bioactive ingredient.

This review discusses the harmful effects of coloring shampoos containing trihydroxybenzene on the scalp-skin barrier and emphasizes the need for safer ingredient selection to prevent side effects.

Polyquaternium-64 helps damaged hair look healthy again.

In this study, UV-light at 254 nm and Polyquaternium-7 treatment were found to affect the mechanical properties and surface structure of hair.

This study found that selected polymeric pretreatments on hair can significantly reduce breakage and protect against thermal damage from hot flat irons by maintaining cuticle integrity and moisture.

This study found that shampoos with sugar-derived surfactants improved hair cleansing properties, were less cytotoxic, and resulted in easier hair combing compared to formulations containing sodium laureth sulfate.

This study found that torsional measurements can effectively distinguish the effects of hair care products on the cuticle versus the cortex of hair fibers, unlike tensile measurements.

PMS nanoparticles improve damaged hair by protecting and restoring its surface and color.

This study concluded that Polyquaternium-10 conditioner softens the surface of the scale face on hair fibers.

In this study, the combination of biologically engineered hyaluronic acid and polyquaternium-10 improved hyaluronic acid's retention and moisturizing effects on hair by forming a stable complex that increased binding affinity to keratin.

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.

This study developed analytical methods to better understand hair treatment with cosmetic formulations, revealing that active agents primarily adsorb on the hair surface during short washes.

This study compared shampoos and found that shampoo D, containing polyquaternium-10, guar gum, and dimethicone, was most effective in restoring chemically permed hair.

This study analyzed hair styling mousses on the Slovenian market, finding that their formulations primarily rely on polymers, with no banned ingredients according to European cosmetics regulations.

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

The researchers reported that adding specific combinations of hydrolyzed proteins to silicone-free shampoo improved hair conditioning properties by reducing friction and increasing surface adsorption and penetration into hair, compared to protein-free alternatives.