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Polyquaternium 7® builds up on hair, improving its look and feel, and AFM is good for measuring these changes.

This study observed that bleaching brown human hair with persulfate salts and hydrogen peroxide induced significant conformational changes in keratin, particularly affecting disulfide bridges and oxidized sulfur species, which may inform the development of hair restorative treatments.

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.

In this study, a DMG-Na and caffeine-containing shampoo significantly reduced hair loss and increased hair density in men with male pattern hair loss over 6 months, compared to a placebo, without adverse effects.

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 review discusses various nanotechnology-based strategies for managing melasma and reports no new clinical results, highlighting the potential of innovative drug delivery systems in treating hyperpigmentation.

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 review analyzes the role of silver nanoparticles in wound healing, highlighting their antimicrobial, anti-inflammatory, and tissue-regenerating properties, and emphasizes the need for further research to optimize formulations and ensure safety.

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 reports that Edelweiss extract significantly prolonged the anagen phase and increased hair density, suggesting potential as an anti-hair loss treatment.

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 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 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 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.

The researchers observed that two non-antimicrobial shampoos caused a significant increase in fungal germs but did not affect the overall scalp microbiota diversity over two weeks, suggesting these formulations may preserve or stimulate the scalp microbiota without adverse effects.

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.

In this study, shampoos containing sodium lauroyl methylaminopropionate showed superior coacervate formation and lubrication on wet hair, outperforming other amino acid surfactants and suggesting potential for creating low-irritation, high-performance hair products.

This study found that a hair-coating polyphenol complex significantly enhanced the mechanical strength, UV protection, and antistatic properties of damaged hair, suggesting potential benefits for hair treatment.

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.

This study found that the PQ-70 shampoo formulation demonstrated the highest Hair Humidity Resistance Factor, indicating superior anti-frizz performance compared to other tested shampoos.

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