COA UK laboratory tested 06/10/26 achieving 99.49% purity…… TIRZ-60 & TIRZ-30 also available on products page ……. One of our hottest sellers is out TIRZ range…… Researchers seeking a larger TIRZ research compound……. Laboratory research purposes only….. it is not intended for human or Veterinary use, consumption, diagnosis, treatment, or prevention of any disease.