To me three-MMC felt just like a stimulant, a filthy a person which probably hits various transmitter's. But minor Seotonin imo and limited lastin kinda lacklustre. Really don't know if it's harmful metabolite's. I am aware 4-MMC has 'em. Which btw seemed so fiendesly addicting I never ever bought it https://codyzavkc.sasugawiki.com/7044969/everything_about_buy_2_mmc_crystal_chunks