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STAPHYLOCOCCUS EPIDERMIDIS EXTRACELLULAR VESICLES

72

Safety score · 0–100

Fine

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

About

Tiny vesicles shed by Staphylococcus epidermidis, a bacteria that naturally lives on human skin. These microbial 'mailers' carry antimicrobial peptides, lipids, and nucleic acids that can help balance the skin microbiome and fight acne-causing bacteria.

Staphylococcus epidermidis is a commensal Gram-positive bacterium resident in the skin microbiome. Its extracellular vesicles (0.2–1 μm diameter) are released during growth and contain AMPs (phenol-soluble modulins, ps_defensins), AI-2 quorum sensing molecules, lipoteichoic acid, and bacterial DNA/RNA. These vesicles can inhibit Cutibacterium acnes and Staphylococcus aureus growth, modulate skin immune responses, and promote skin homeostasis. The key safety variable is the purification process: inadequately purified vesicles may retain bacterial endotoxins (LPS) or protein toxins. Purified cosmetic-grade vesicles are generally well tolerated.

Function

ANTI-SEBORRHEIC, ANTIOXIDANT, ASTRINGENT, SKIN PROTECTING, SKIN CONDITIONING - MISCELLANEOUS

Skin benefits

  • Antimicrobial activity against acne-causing Cutibacterium acnes
  • Supports healthy skin microbiome balance
  • May reduce inflammation associated with acne
  • Contains AMPs that act as natural skin antimicrobials
  • Potential for reducing S. aureus colonization in atopic skin

Known concerns

  • Improperly purified vesicles may contain endotoxins (LPS) from bacterial cell walls
  • Risk of microbial contamination if manufacturing controls are inadequate
  • Immune modulation effects are not fully characterized
  • Rare reports of S. epidermidis as an opportunistic pathogen in immunocompromised contexts

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.