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An interface is the boundary between any two of the three phases of matter (solid, liquid or gas); the study of such interfaces is interface science. For more than 100 years, Lion has been involved in interface science research, producing cutting-edge detergents and other products. In recent years, Lion has developed surfactants made from plant-derived palm oil, aiming to provide more environment-friendly products. The excellent detergency and biodegradability of these surfactants have garnered widespread attention. In addition, we employ world-leading technologies to study various interfacial mechanisms, such as those that produce foam, an interface phenomenon of air and liquid, and emulsions, an interface phenomenon of oil and water. By steadily advancing such research, we are expanding our focus from surfactants to include other areas as we work to develop the cleaning technologies of the future.
Rinse-free washing technology incorporated into Acron Smart Care, a laundry detergent (for delicates) with Fabric-softening agents a built-in softening agent
Nano-Washing Verified Using Small-Angle X-Ray Scattering
Applying Biointerface Research to Maximize Active Ingredient Effectiveness
Using Aggregate Control Technology to Enhance Product Functions
Novel Approach to Enhancing Skin Penetration of Active Ingredients by Cosmetic Film Formation on the Skin
Annual Congress of SCCJ
2025/12/10
Sachiko Masaoka
Precipitation morphology and properties of surfactant-polymer complex formed by two cationic polymers
3rd Annual Congress of the Society of Cosmetic Chemists of Japan
2025/12/10
Masayuki Nakagawa
Development of skin cleansing formulations that retain moisturizing agents on the skin
Technical Education Publishing Online Seminar “Cleansing Technologies, Detergent Development, and Functional Innovation in Cosmetics and Toiletry Products 2025”
2025/11/21
Masayuki Nakagawa
Effect of phosphate in fluoride-calcium-phosphate complexes on fluoride retention in the oral cavity.
The 47th Annual Meeting of Japanese Society tof Biomaterials
2025/11/11
Hikaru Takabayashi
Analysis of the Colloidal Gel Structure Formed by Aluminum Salts and Its Formation Mechanism
Autumn Meeting 2025
2025/10/28
Sachiko Masaoka
Enhancing the Extrapolation and Interpretability of Stability Prediction Models for Body Washes: Application of Composition Descriptors and Modular Neural Network
Journal of Computer Aided Chemistry
2025/10/15
Eisuke Inagaki
The 52nd Annual Meeting of the Society for Antibacterial and Antifungal Agents, Japan
The Enhancing Effect of Branched Higher Alcohols on Viral Inactivation of Fatty Acid Salts
2025/09/24
Eijiro Murakami
Structural analysis of precipitated complexes (coacervates) of flexible-chain cationic polymer/surfactant mixtures
The 76th Division Meeting of Division of Colloid and Surface Chemistry
2025/09/22
Sachiko Masaoka
Biomembrane permeation of non-steroidal anti-inflammatory drugs: Influence of molecular structure
The 76th Division Meeting of Division of Colloid and Surface Chemistry
2025/09/22
Akira Sorada
Structural properties of double-chain cationic surfactant/higher alcohol mixed lamellar gel systems studied by small- and wide-angle X-ray scattering and electron microscopy
The 76th Division Meeting of Division of Colloid and Surface Chemistry
2025/09/22
Masakazu Ono
Analysis of Surfactant Crystal Surface Structure in Organic Solvent-Containing Solutions Using 3D-SFM
The 76th Division Meeting of Division of Colloid and Surface Chemistry
2025/09/22
Ryota Hashimoto
Surface Structure Analysis of Surfactant Crystals by the Addition of Organic Compounds Using 3D-SFM
The 76th Divisional Meeting of Colloid and Surface Chemistry, Young Researcher Oral Presentation Award
2025/09/22
Ryota Hashomoto
Novel Approach to Enhancing Skin Penetration of Active Ingredients by Cosmetic Film Formation on the Skin
iFSCC 35tｈCONGRESS
2025/09/17
Sachiko Masaoka
35th International Federation of Societies of Cosmetic Chemists(IFSCC) in France 2025
Demonstration of the efficacy of the moisturizing and itch-relief cream for sensitive skin that utilizes technology to increase the penetration of water-soluble active ingredients to the skin
2025/09/17
Meijia Li
Precipitation morphology and properties of surfactant-polymer complex formed by two cationic polymers
35th International Federation of Societies of Cosmetic Chemists Congress
2025/09/17
Masayuki Nakagawa
Lipid membrane permeation of lipophilic substances through cholic salt micelles: Influence of molecular structure of lipophilic substances
39th Conference of the European Colloid & Interface Society
2025/09/09
Akira Sorada (Joint research with Tokyo University of Science)
The Effect of Micelle Surface Charge Density on the Structural and Physical Property Changes of Soap/PDADMAC Adsorbed Complexes during the Rinsing Process
The 63rd Annual Meeting of the Japan Oil Chemists' Society
2025/09/03
Shotaro Kariya
Lipid membrane permeation of lipophilic substances through cholic salt micelles: Influence of molecular structure of lipophilic substances
The 63rd Annual Meeting of the Japan Oil Chemists' Society
2025/09/03
Akira Sorada (Joint research with Tokyo University of Science)
The 63rd Annual Meeting of the Japan Oil Chemists’ Society
Enhancement of Viral Inactivation of Fatty Acid Salts by Branched Higher Alcohols and Mechanistic Analysis
2025/09/03
Wataru Shirae
Verification of Evaluation Methods for Persistence of the Antibacterial Effect after Handwashing with Hand Soap
J.Soc.Cosmet.Chem.Jpn. Vol.59, No.2
2025/05/31
Masashi Tachikawa
Improving Extrapolation Performance and Interpretability of Multi-Component Compositions using Modular Neural Network
The 47th Chemoinformatics meeting, 2025, Outstanding Poster Award
2024/12/17
Eisuke Inagaki
Structure and Solvent/ion Dynamics in Cationic Polymer/Anionic Surfactant Mixtures: Deeper Insights into Coacervation Phenomena
International Symposium on Fiber Science and Technology 2024
2024/11/27
Sachiko Masaoka
Comparison of Surface Structures of Surfactant Crystals with Different Solubility by FM-AFM and MD Simulations
32nd international Colloquium on Scanning Probe microscopy
2024/11/18
Ryota Hashimoto
Effect of Cholic Acid Salt and Its Mixed Micelles on the Morphology of Giant Unilamellar Vesicles (GUV)
Journal of Oleo Science
2024/10/28
Miyuki Miyake
Molecular and Hydration Structure Analysis of MES-Na and MES-K Crystal Surfaces Using FM AFM and MD
The 75th Civisional Meeting of Division of Colloid and Surface Chemistry
2024/09/17
Ryota Hashimoto
Structural analysis of precipitated complexes (coacervates) during the dilution process of cationic polymer/surfactant mixtures
The 75th Civisional Meeting of Division of Colloid and Surface Chemistry
2024/09/17
Sachiko Masaoka
Molecular and Hydration Structure Analysis of MES-Na and MES-K Crystal Surfaces Using FM AFM and MD
The 75th Civisional Meeting of Division of Colloid and Surface Chemistry
2024/09/17
Ryota Hashimoto
Membrane transport of lipid-soluble substances via bile salts: Effect of molecular structure
75th Symposium on Colloid and Interface Chemistry
2024/09/17
Miyuki Miyake (Joint presentation with Tokyo University of Science)
Poster Award: Molecular and Hydration Structure Analysis of MES-Na and MES-K Crystal Surfaces Using FM AFM and MD
75th Symposium on Colloid and Interface Chemistry
2024/09/17
Ryota Hashimoto
Poster Award: Membrane permeation of lipid-soluble substances via bile salts: Effect of molecular structure
75th Symposium on Colloid and Interface Chemistry
2024/09/17
Miyuki Miyake (Joint presentation with Tokyo University of Science)
The diversity and fascinating nature of interface chemistry hidden in everyday items
8th Young Researchers' Forum for Creating the Future of Colloid and Interface Chemistry Invited Lecture
2024/09/16
Astunori Morigaki
Friction Reduction Effect of Polymer Surfactant Complex on Clothing
62nd Annual Meeting of Japan Oil Chemists Society
2024/09/03
Shinya Sudo
Structural analysis of organic-inorganic complexes that achieve both fluoride retention and sustained release
62nd Annual Meeting of Japan Oil Chemists Society
2024/09/03
Hikaru Takabayashi
Effect of cationic group structure on the changes in properties of soap/cationic polymer complexes during rinsing
62nd Annual Meeting of Japan Oil Chemists Society
2024/09/03
Kariya Syotaro
Persistence of the Antibacterial and Antiviral Effects after Skin Cleansing ~A New Approach to Suppress
Journal of Oleo Science, Vol. 73, No. 7 (2024)
2024/07/01
Masashi Tachikawa
A study on foam formation in toilet spray detergent
The 76th Annual Meeting of the Japan Society of Home Economics
2024/05/26
Chihiro Enodo
Texture and water absorption behavior of clothing treated with silicone fabric softener
2024 AOCS Annual Meeting & Expo
2024/05/01
Hikaru Takabayashi
Ensuring the appearance quality of vitamin A eye drops
27th General Drug Formulation Technology Seminar
2024/03/09
Shunsuke Uchino
Precipitation morphology and properties of surfactant-polymer complex formed by two cationic polymers.
Oil Chemistry Seminar in 2020 - The forefront of oils and interfaces by young researchers
2024/01/26
Masayuki Nakagawa
Cacervate formetion mechanism and texture control
Seminar sponsored by CMC Publishing
2023/11/10
Miyuki Miyake
Elucidation of the membrane permeation mechanism of lipid-soluble substances via bile salts - Study using phase-separated bilayer membranes -
Japan Society of Colour Material
2023/11/07
Miyuki Miyake
Fractal structure analysis of thin film forming chlorohydroxyaluminum gel exhibiting antiperspirant function
72nd Symposium on Macromolecules
2023/09/26
Sachiko Masaoka
Hierarchical structure of supramolecular fractal network gels comprising chlorohydroxyaluminum by USAXS/SAXS/WAXS experiments
The 74th Divisional Meeting of Division of Colloid and Surface Chemistry
2023/09/12
Sachiko Masaoka
Japan Oil Chemists' Society Kanto Branch 11th (2023) Young Researcher Encouragement Award "Precipitation morphology and properties of surfactant-polymer complex formed by two types of cationic polymers"
The11th (2023) Young Researchers Encouragement Award Japan Oil Chemists' Society Kanto Branch
2023/09/08
Masayuki Nakagawa
Analysis of the bactericidal action mechanism of alcohol-based solvents using giant unilamellar vesicles
The 61st Annual Meeting of the Japan Oil Chemists' Society
2023/09/07
Yasuki Kato
Aggregate morphology and physical property changes during rinsing process of soap/PDADMAC composites
The 61st Annual Meeting of the Japan Oil Chemists' Society
2023/09/07
Shotaro Kariya
Precipitation morphology and properties of surfactant-polymer complex formed by two types of cationic polymers
The 61st Annual Meeting of the Japan Oil Chemists' Society
2023/09/07
Masayuki Nakagawa
Texture and water absorption behavior of clothing treated with silicone fabric softener
The 61st Annual Meeting of the Japan Oil Chemists' Society
2023/09/07
Hikaru Takabayashi
The mechanism of bilayer permeation of oil-soluble substances with bile salt
Formulation Conference 2023
2023/07/03
Miyuki Miyake
Acceleration of Toothpaste Dvelopment using Bayesian Optimization
The 37th Annual Conference of the Japanese Society for Artificial Intelligence, 2023
2023/06/09
Eisuke Inagaki
66th (2022) Oil and Fat Technology Paper Award "Synergistic effect of surfactant and chelating agent on stubborn keratin grime for easy cleaning"
Oil & Fat Industry Kaikan Award
2023/02/21
Shinya Sudo
Fractal gel network structure comprising chlorohydroxyaluminum nanoparticles having antiperspirant function
The 73rd Divisional Meeting of Division of Colloid and Surface Chemistry
2022/9/20-9/22
Sachiko Masaoka
2021 (56th) Japan Oil Chemists' Journal of Oleo Science Editors’Award "Synergic Effects of Surfactant and Chelating Agent on Stubborn Keratin Grime for Easy Cleaning"
J. Oleo Sci. 70, (12) 1769-1776 (2021)
2021/11/9
Shinya Sudo, Yosuke Watanabe, Kazuya Inomata, Ryo Hyodo, Atsushi Naito
Research and Development Headquarters, Lion Corporation
2021 (56th) Japan Oil Chemists' Society Industrial Technology Award "Developing a Method to Remove Stubborn Bathtub Keratin Grime and Application to the Bath Cleaner that can reduce the burden of daily cleaning"
Oleo Science 2022 Volume22 Issue6 Pages 254-255
2021/11/9
Shinya Sudo, Ryo Hyodo, Yosuke Watanabe, Atsushi Naito
Research and Development Headquarters, Lion Corporation
Structural Analysis of Nanoparticles and Gel Networks Formed by Chlorohydroxyaluminum by Small- and Wide-Angle X-ray Scattering
The 72nd Divisional Meeting of Division of Colloid and Surface Chemistry
2021/9/15-9/17
Sachiko Masaoka
Enhancement of Virus Inactivation of Cationic Surfactants by Sulfate Ions
The 60th Annual Meeting of the Japan Oil Chemists' Society
2021/9/6-9/11
Rei Saito
Dispersion stabilization of fragrance capsules in fabric softeners - Viscoelasticity control in vesicle systems based on depletion aggregation
The 60th Annual Meeting of the Japan Oil Chemists' Society
2021/9/6-9/11
Asami Miyajima
Synergistic effects of surfactants and chelating agents on tightly adherent keratin for simple cleaning
The 60th Annual Meeting of the Japan Oil Chemists' Society
2021/9/6-9/11
Shinya Sudo
Permeation Behavior of Liposoluble Substances Solubilized in Bile Salts/Phospholipid Mixture Micelles through Biological Membrane Models
The 60th Annual Meeting of the Japan Oil Chemists' Society
2021/9/6-9/11
Sara Isurugi