Are you sure that is correct for the German market?
I have seen articles about cheap Hungarian weed sprayed with Chinese synthetic "canabis" being sold as spice. Apparently it's stronger and more addictive.
I would love to see the source, I don't think this is a common phenomenon anywhere in the world.
Nor does it particularly make sense to me... why not just spray on delta THC-8 or 9, the whole point of synthetic cannabinoids is they don't show up on drug tests.
Synthetic has different (but similar) effects. Synthetic might be cheaper than THC-8 or 9 for some buyers. I think it's plausible a good amount of users will prefer some synthetics in a blind test.
I have seen articles about cheap Hungarian weed sprayed with Chinese synthetic "canabis" being sold as spice. Apparently it's stronger and more addictive.
But I must admit I have not double checked it.
Just found a bit here: https://en.wikipedia.org/wiki/Synthetic_cannabinoids