You'll be able to stay clear of this concern entirely by screening a small bit of your blotter sq. with a reagent check kit prior to taking it (highly advised). . “Sci­en­tists are redis­cov­er­ing what lots of see because the sub­stances’ aston­ish­ing ther­a­peu­tic poten­tial.” Pure LSD has a long time https://aztec-crystal-lsd-blotter01122.blogzet.com/the-smart-trick-of-beatles-lsd-blotter-that-nobody-is-discussing-45898260