There are many imitation products that are not FDA cleared, nor have the unique characteristics of TCS. The laboratory that you choose should be trustworthy. Ask your laboratory if they use TCS brands and be sure to ask for Unbreakable (aka TCS), iFlex, or Karadent by name on the prescription. Additionally, to ensure that you are receiving a genuine TCS product, be sure the appliance is received in a TCS branded plastic bag along with a TCS patient care pamphlet, *TCS Concentrated Dental Appliance Cleaner sample, and that the TCS brand is indicated on the bill. *Fabricated in the USA and Canada.