A great way to tell if a spice spray that you have purchased in the recent path is an actual legitimate product from an established brand rather than something that is fake and harmful is by smelling it. There is a pretty good chance that the real stuff will smell very different from the fake stuff, so much so that the former would have a truly pleasant aroma associated with it whereas the latter might smell so terrible that you would never want to be around it no matter what occurs in the far flung years of the future.
The truth of the situation is that a good quality legal high spice spray for sale should smell natural, with spicy aromas such as cinnamon being commonly cited as being desirable in them. K2 in particular has a truly herbal smell that you would want to keep putting into your nose time and time again. This is because of the fact that it will smell like a veritable garden of herbs, with notes of cilantro and coriander coming into the mix as well as a distinct citrus undertone that brings the whole thing together.
You should know that the wonderful fragrance of K2 is a major aspect of why it is so popular. The fact of the matter is that you can taste these aromas as well once you take them into your mouth and that can accentuate your experience of consuming spice sprays by several orders of magnitude. You should make sure that any and all spice sprays that you buy can pass a smell test that you have set aside for them so that you can use them without stress.