Which of the following is true about synthetic cannabis products like K2?

Synthetic cannabis products like K2 are designed to bind to the same receptors in the brain as THC, the active component in cannabis. This is why they are often considered chemically similar to THC. However, the exact chemical composition of synthetic cannabinoids can vary widely and may include novel and untested compounds, which can often lead to unpredictable and dangerous effects.

The other choices reflect misconceptions about synthetic cannabis. While some might think they are always safe due to their marketed nature, the reality is that they can have severe and harmful side effects. The idea that they are a type of natural herb confuses them with natural cannabis, as synthetic cannabis is typically manufactured using chemical processes rather than derived directly from the cannabis plant. Lastly, while some synthetic cannabis products may not be regulated, this varies by jurisdiction. However, the fact that they can exist outside of regulatory frameworks is not a defining characteristic; the core aspect remains their chemical similarity to THC.