http://poisonswi2r24aznfp32sbbr3ev6ivmkkklmlgputikvkfwdohugrpqd.onion/shop.php
At the bottom of the page, you'll find information on delivery, purchasing instructions, and contact details. The general idea is as follows: in today's world of advanced organic and synthetic chemistry, there are poisons that are easily identifiable by experts, as well as those that are not.