Legality varies. For the US, see https://en.m.wikipedia.org/wiki/Psilocybin_decriminalization_in_the_United_States https://en.m.wikipedia.org/wiki/Psilocybin_de

Legality varies. For the US, see https://en.m.wikipedia.org/wiki/Psilocybin_decriminalization_in_the_United_States https://en.m.wikipedia.org/wiki/Psilocybin_decriminalization... But also, spores (which lack that chemical) are often legal, so if you want to avoid an illegal purchase, you could just get spores and grow your own.