Nothing todo with marijuana, it’s just Vitamin E, which makes it easier to produce vape liquids
According to the Missouri health department, marijuana products without added Vitamin E were failing the safety test because they contained naturally occurring Vitamin E.
So specifically for marijuana products they increased the allowable amount.
I don't really understand why they decided this though. Their reasoning suggests that they think natural occurring poison is less harmful than added poison ?
> It was determined that raising the VEA [Vitamin E Acetate] action limit to 5ppm (0.0005% by weight) accounts for any naturally occurring vitamin E, which has not been identified as a health and safety concern upon inhalation and prevents false failures for VEA screening