Personal care compositions comprising amino acids

By using specific combinations of amino acids as prebiotics for skin symbiotic bacteria, the problem of difficulty in selectively inhibiting or killing non-symbiotic bacteria on the skin in the prior art is solved, and a healthy balance of the skin microbiome and inhibition of harmful bacteria are achieved.

CN116348087BActive Publication Date: 2025-03-28UNILEVER IP HLDG BV
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Patent Information

Application Number
CN202180066729.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2020-09-29
Filing Date
2021-09-26
Publication Date
2025-03-28
Estimated Expiration
2041-09-26

AI Technical Summary

Technical Problem

The prior art is difficult to effectively selectively inhibit or kill non-symbiotic bacteria on the skin, such as E. coli and Staphylococcus aureus, resulting in an imbalance in the skin microbiome.

Method used

By using specific combinations of amino acids such as L-cysteine, L-serine, L-alanine, L-aspartic acid, L-tyrosine, L-glycine and L-threonine, it serves as prebiotics for skin symbiotic bacteria, promoting the growth of skin symbiotic bacteria while inhibiting the growth of harmful bacteria.

Benefits of technology

It achieves a healthy balance of the microbiome on the skin, promotes the growth of symbiotic bacteria in the skin, inhibits the growth of harmful bacteria, and thus improves the health and defense capabilities of the skin.

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Abstract

The present invention relates to personal care compositions for protecting the skin from unwanted bacteria. The present invention is particularly useful for formulating compositions that ensure the growth of skin commensal bacteria such as S. epidermidis while inhibiting the growth of harmful bacteria such as E. coli, S. aureus, etc. Thus, the present invention comprising a mixture of selected amino acids provides a balance of the microbiome on the skin.
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