January 2010 in “DR-NTU (Nanyang Technological University)” This study found that exposure to chlorine significantly reduced tensile properties in human hair compared to normal, while dyeing only affected some properties but not all.
7 citations
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September 2020 in “International Journal of Cosmetic Science” This study investigated the effects of wool-derived hydrolysed keratin peptides on relaxed textured hair and found that mid- and high-molecular weight peptides improved mechanical strength and reduced breakage in different humidity conditions.
17 citations
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July 2018 in “International Journal of Cosmetic Science” This study found that keratin-based particles were able to recover and enhance the mechanical properties and thermal stability of virgin and overbleached Asian hair, improving its strength and smoothness by around 40%, and demonstrated safety in human skin keratinocytes.
May 2025 in “Health Science Reports” This study reported that applying Serum WS Biotin, a water-soluble form of D-Biotin, daily for 3 months significantly reduced hair shedding and increased hair strength in volunteers with moderate to excessive hair shedding, while showing good skin compatibility.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” This study evaluated a multipurpose herbal liquid shampoo formulated with extracts like Horse Gram and Amla, reporting effective cleansing, no skin irritation, and a pH of 5, suitable for scalp and hair.
January 2013 in “Springer eBooks” Hair care products are important for appearance and self-esteem, and choosing the right ones can help maintain healthy hair.
January 2024 in “Uttar Pradesh journal of zoology” In this study, researchers found that chemical treatments like bleaching can cause severe damage to the hair cuticle, with previously modified hair showing complete deterioration compared to the partial degradation seen in virgin hair, highlighting the need for mindful cosmetic practices.
2 citations
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September 2010 in “Journal of the Korea Academia-Industrial cooperation Society” This study found that increasing collagen concentration to 2% in permanent wave treatments reduced hair damage but impaired curl formation.
January 2026 in “Eng—Advances in Engineering” This study developed a biodegradable nonwoven textile using a starch-based biopolymer and fruit extracts, resulting in materials that are stronger, more hydrophilic, and capable of releasing beneficial compounds over 72 hours, positioning them for potential use in medical, healthcare, and cosmetic applications.
December 2025 in “Zenodo (CERN European Organization for Nuclear Research)” This study examined the thermal conductivity of human hair using the Modified Transient Plane Source method, highlighting how frequent thermal, mechanical, and chemical treatments can damage hair by weakening its structure, particularly through changes in keratin that reduce elasticity.
January 2005 in “Seibutsu Butsuri/Seibutsu butsuri” Chemical treatments damage hair more than UV exposure, making it thinner and less flexible.
October 2018 in “Focus on surfactants”
75 citations
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November 1965 in “Textile research journal” This study found that papain/bisulfite disintegrates human hair cuticles by dissolving the endocuticle, potentially accelerated by ethanol's removal of cell membrane material.
June 2017 in “University of the Arts London Research Online (University of the Arts London)” This study compared the effects of three compounds on structural and sensory benefits for bleached hair when applied with or after bleaching, observing that their application may mitigate bleaching-induced damage.
May 2026 in “Zenodo (CERN European Organization for Nuclear Research)” This research formulated and evaluated a multipurpose herbal liquid shampoo using plant-based extracts, which showed good cleansing action, medium foaming, and caused no skin irritation, suggesting it to be a safe alternative to synthetic shampoos.
October 2025 in “International Journal of Homoeopathic Sciences” This non-randomized trial observed that Wiesbaden 30CH was more effective than supportive haircare for telogen effluvium, with 53.3% showing moderate improvement compared to 20% for haircare, although a notable portion in both groups saw no improvement.
33 citations
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January 2017 in “Psychoneuroendocrinology” This study of Danish women found no evidence linking hair cortisol concentration to hair dyeing status or the frequency of hair washing.
9 citations
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January 2023 in “Langmuir” This study presents a method for directly measuring the solubility of solid chemicals in the skin's stratum corneum under various humidity conditions, emphasizing its importance for dermal drug delivery and chemical safety assessments.
5 citations
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August 2016 in “International Journal of Cosmetic Science” In this in-vitro study, researchers found that shampoo-induced coacervates structurally resemble cationic polymers and contain anionic surfactants that may stimulate the scalp upon exposure to water.
44 citations
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January 2010 in “International journal of trichology” This article discusses the complexity of selecting hair cleansing products and conditioners and reports no new scientific findings or results.
53 citations
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July 2016 in “Cosmetics” This study reviews the biology and cosmetic treatment of hair, emphasizing future advancements in safer, more effective procedures to meet consumer needs for hair care.
This study suggests that shiitake mushroom, buckwheat, soybean, cypress, and seaweed fulvescens may be potential candidates for use in scalp care cosmetics due to their antioxidative and antimicrobial properties, safety, and favorable user feedback.
January 2024 in “Collagen and leather” This study observed that using an environmentally friendly bovine milk permeate effectively and cleanly removes wool from sheepskins without harming the skin, and results in smoother leather compared to traditional chemical methods.
This paper highlights the significant role of silicones in hair conditioners, noting their ability to enhance smoothness and manageability while also protecting against damage. The authors emphasize the growing importance of developing silicone-free, eco-friendly alternatives to meet evolving consumer preferences.
September 2023 in “International Journal of Cosmetic Science” 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.
1 citations
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November 2025 in “American Journal of Medical Science and Technology” In this study, researchers formulated a herbal shampoo using ingredients like Reetha, Shikakai, Aloe Vera, and Amla, and found it demonstrated favorable characteristics such as good foam stability, detergency, and cleansing properties, with ideal physico-chemical evaluation results for stability, safety, and efficacy.
1 citations
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August 1999 in “ACS symposium series” In this study, fluorescence microscopy revealed that a cationic cellulose ether derivative adsorbed onto hair fibers desorbed significantly when treated with sodium dodecylsulfate.
March 2026 in “Advanced Healthcare Materials” 2 citations
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March 2021 in “CRC Press eBooks” This review discusses the composition and benefits of shampoos including cleansing and conditioning properties, but reports no new research findings.
2 citations
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July 2023 in “Cosmetics” 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.