They are legit in my limited experience, but I haven't done independent laboratory analysis of the product, just tried it and read of others' experience with it. A close friend and an online friend who is a myco grow guy have ordered from them, and I've tried the 4-ho-met from them and it was very nice. Comes wonderfully packaged and arrives pretty darn quick. Seems like interception from customs is rare based on what i've read.