Method in practice
Human-relevant methods are not only a pharma story
Jun 25, 2025 · Added Oct 7, 2026
The development
OECD TG 439 provides an established, purpose-specific example in skin irritation assessment.
Our reading
Keep safety, mechanism, cosmetic performance and aging claims separate.
The interpretation above is editorial analysis, not a claim made by the source.
OECDThis is an irritation-hazard method, not evidence of cosmetic efficacy, skin rejuvenation or longer healthy life.
Read the evidence note