I had site problems I couldn’t solve at both Purchase Peptides and International Peptide, so I ended up ordering tadalafil from Grindstone Labs. They had some good reviews, but you never know how valid those are, so we’ll see. I should note that Grindstone has some obnoxious chicken feces charges - for handling and sales tax - but when I complained about those they gave me a discount which more than offset them. Even so, I think that’s bad marketing. And in my case they certainly don’t need to charge sales tax. I sent them a strongly worded email about that.