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CUTIBACTERIUM ACNES DEFENDENS XYCM42

86

Safety score · 0–100

Good

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

A probiotic subspecies of C. acnes specifically designated as defendens, selected for its protective properties against more harmful skin bacteria.

Cutibacterium acnes subspecies defendens strain XycM42 represents a specific probiotic bacterial selection from the C. acnes species, designated as the defendens subspecies indicating its protective or beneficial role relative to other C. acnes strains. Subspecies defendens strains are characterized in the scientific literature as commensal skin bacteria that may help protect against pathogenic bacterial colonization. The strain designation XycM42 suggests proprietary selection for specific beneficial properties. As with other probiotic C. acnes strains, no specific EU restrictions apply under Regulation 1223/2009, though standard microbiological quality and safety controls for live bacterial cosmetic ingredients apply.

Skin benefits

  • Microbiome protective function
  • Competitive exclusion of harmful strains
  • Skin barrier support
  • Anti-inflammatory properties
  • Targeted acne management

Known concerns

  • Manufacturing sterility and quality control required
  • Viable organism count stability critical
  • General probiotic safety considerations apply

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.