Personal care composition containing bio-surfactants

Mono-rhamnolipid surfactants with a C10-C13 alkyl tail in personal care compositions address the harshness of sulfates, providing effective foaming and cleansing while ensuring stability and consumer acceptance.

JP7893981B2Active Publication Date: 2026-07-22PROCTER & GAMBLE CO
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Patent Information

Application Number
JP2025523571
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2022-10-31
Filing Date
2023-10-27
Publication Date
2026-07-22
Estimated Expiration
2043-10-27

AI Technical Summary

Technical Problem

Conventional shampoos using sulfated surfactants cause harshness and dryness, and sulfate-free alternatives lack desirable foaming and cleaning properties, leading to instability and poor lathering.

Method used

Personal care compositions comprising mono-rhamnolipid surfactants with a single C10-C13 alkyl tail group, combined with additional non-sulfating surfactants and a dispersed gel reticular structure phase, provide effective foaming and cleansing without sulfates.

Benefits of technology

The compositions offer mild cleansing with good foaming and stability, maintaining product integrity and consumer satisfaction.

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Abstract

A sulfate-free personal care composition comprising a rhamnolipid surfactant provides good cleansing and foaming properties. The rhamnolipid surfactant has a single rhamnose head group (i.e., mono-rhamnolipid) and a single lipid tail group (i.e., monolipid). The single lipid tail group has a carbon chain length of 10 to 13. The composition may contain one or more additional surfactants selected from anionic surfactants, amphoteric surfactants, zwitterionic surfactants, nonionic surfactants, cationic surfactants, and combinations thereof, as long as the additional surfactant does not contain sulfate. The composition also contains a dermatologically acceptable carrier.
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