How do you know that? Are you a former drug user? Why is it safe? Because it's regulated and there's a stamp saying "safe product"? Tobacco is regulated by the government, but it's full of dangerous chemicals. People are used to do things their way, so if someone buys from a dealer and the price is good, there's no reason to go to the government's shop.
Whoever fights monsters should see to it that in the process he does not become a monster. And if you gaze long enough into an abyss, the abyss will gaze back into you