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We are excited to announce that we are the only laboratory in the world to offer delta-8-THC, delta-9-THC, delta-10-THC, and cannabidiol testing for environmental exposure in hair (ChildGuard®).

Effective February 19, the following parent/native cannabinoids became available in ChildGuard® testing:

  • ∆8-THC
  • ∆9-THC
  • ∆10-THC
  • Cannabidiol (CBD)

The presence of any of these cannabinoids in hair or nails is evidence of environmental exposure to the specific cannabinoid detected and does not infer ingestion of the cannabinoid.

The difference between these cannabinoids is caused by a double bond on the eighth, ninth, or tenth carbon atom. The minor differences in these cannabinoids cause them to exert different levels of psychoactive effects. To learn more about the difference between delta-8 and delta-9 specifically, here is a resource we found useful.

The FDA has also released a warning letter for alleged Cannabidiol-Related products containing more THC than they claim to. 

We encourage you to read these resources to learn more about the topic.

If you have any questions regarding these changes, please contact our Client Services Department at 800.235.2367, or email