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CUTIBACTERIUM ACNES CA-21

86

Safety score · 0–100

Good

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

About

A targeted probiotic strain of skin bacteria selected for its beneficial interactions with human skin and potential anti-inflammatory effects.

Cutibacterium acnes CA-21 is a specific non-virulent strain of C. acnes selected for its favorable interactions with human skin in probiotic cosmetic applications. Like other CA strains, CA-21 is selected to compete with pathogenic skin bacteria and support skin homeostasis without the inflammatory potential associated with more virulent C. acnes phylotypes. The ingredient represents the intersection of microbiome science and cosmetics, with growing evidence supporting strain-specific benefits. No EU-specific restrictions apply to this probiotic ingredient under Regulation 1223/2009, though standard cosmetic microbiology controls ensure product safety.

Skin benefits

  • Strain-specific skin health support
  • Microbiome diversity promotion
  • Anti-inflammatory properties
  • Reduces harmful C. acnes strains
  • Skin homeostasis

Known concerns

  • Manufacturing sterility and quality control critical
  • Viable cell count stability over product shelf-life required
  • Immunocompromised users should exercise caution

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.