Oil-in-water emulsion cosmetic

The combination of hydrogenated jojoba oil, lauroyl glutamate, and trehalose in an oil-in-water emulsion cosmetic addresses the challenge of balancing water loss suppression and skin comfort, achieving effective moisturization and ease of use in low-viscosity products.

WO2026115791A1PCT designated stage Publication Date: 2026-06-04FUAN KERU
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
FUAN KERU
Filing Date
2025-07-08
Publication Date
2026-06-04

AI Technical Summary

Technical Problem

Existing oil-in-water type emulsified cosmetics struggle to balance the function of suppressing transepidermal water loss while maintaining a non-sticky and non-squeaky feel, particularly in low-viscosity formulations like lotions or skin care liquids.

Method used

An oil-in-water emulsion cosmetic comprising hydrogenated jojoba oil, lauroyl glutamate di(phytosteryl/octyldodecyl) or lauroyl glutamate di(octyldodecyl/phytosteryl/behenyl), and trehalose, with a specific mass ratio and viscosity, to enhance transepidermal water evaporation suppression, moisturizing persistence, and skin compatibility.

Benefits of technology

The cosmetic effectively reduces transepidermal water loss, provides sustained moisturization, improves skin barrier function, and offers a pleasant feel without stickiness or tightness, with a viscosity suitable for easy absorption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention addresses the problem of providing: a novel oil-in-water emulsion cosmetic; and an oil-in-water emulsion cosmetic that has an excellent percutaneous moisture transpiration-suppressing effect, an excellent moisture retention-maintaining effect, an excellent feeling of tension and elasticity, and an excellent compatibility with the skin, and has little discomfort such as stickiness and squeakiness. As a means for solving the problem, provided is an oil-in-water emulsion cosmetic containing the following components (A) to (C):　(A) hydrogenated jojoba oil, (B) either or both of di(phytosteryl / octyldodecyl)lauroyl glutamate and di(octyldodecyl / phytosteryl / behenyl)lauroyl glutamate, (C) trehalose.
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Citation Information

Patent Citations

  • High-stability sunscreen skin-care lotion and preparation method thereof

    CN107854339A

  • Skin care preparation

    JP2003342145A

  • Emulsion cosmetic

    JP2017081872A

  • Skin external composition

    JP2019019077A

  • Oil-in-water type emulsion composition

    JP2020203860A