C. Acnes Bacteriophage
C. Acnes Bacteriophage
A bacteriophage-based cosmetic bioactive intended to selectively target Cutibacterium acnes (formerly C. acnes), the acne-associated skin bacterium. It is used as an acne-fighting microbiome-focused ingredient rather than a traditional exfoliant or antimicrobial. ([phyla.com](https://phyla.com/products/acne-phage-system?utm_source=openai))
Benefits
Skin Type Compatibility
Interactions
Risks & Warnings
Primary concerns are limited clinical and regulatory data in cosmetics, possible formulation stability issues for a biological ingredient, and the theoretical risk of reduced efficacy if improperly preserved or stored. As with most biotechnological actives, product-specific safety testing matters. FDA notes cosmetic ingredients generally do not require premarket approval, but manufacturers remain responsible for safety. ([fda.gov](https://www.fda.gov/cosmetics/cosmetic-products-ingredients/cosmetic-ingredients?utm_source=openai))
