well cancun really is south of the tex/mex or arizona/new mexico/california border. The key is to have balls now a days. If I was you I would go either 30 to 45 minuetes west or south or even north west of cancun. But, if you go to the barrios of cancun you can find a farmacia. The whole thing is to seem genuine. I can speak spanish so I guess here is where your effectiveness can come in. Stay away from the 'Walgreens', 'CVS' type pharmacy. You want a mom and pop type of shop. Tell them you get testosterone = testosterone in spanish but you have to pronounce it differently you have to say tes-ta-roneaye paaaraaah meeese Or-moan-ez. Nada Para Ah-knee-mal-ez and you'll get human grade stuff. Basically your telling the 'pharmacist' that you want something thats not vet grade. You'll usually get someone with somewhat english that'll be like yeah no problem, but here is where you must observe caution. read the label if it says veterianio or if you can read vet its not human grade but it doesn't mean it won't work for you. I usually argue that this is vet grade and I'm not paying for it and then they ususally give me human grade suff. but to be honest they way the world is now I wouldn't be surprised that the stuff you get is vet grade even if it says its human grade from mexico. Regardless of the fact it should work. The thing is confidence you gotta know what your talking about and they usually don't won't fuck with ya.