I spent 24 days in Thailand and I used amps, it has been years since I fooled with amps. I got a box of 10 amps of pharma cyp and 10 viles of prop. Both were 2 ccs per amp. Also got a 10 cc vile of Euro Med tri tren. The amps are kind of pain in the ass. I would pop off the glass tops and sometimes they would fall to the floor. Plus you need a inch and half needle to reach the bottom of the amp. I had 22 gauge 1 inchers, for the first 5 days. In Bangkok all the pharmacies were sold out of 1 inch and half but Pattaya had the longer needles thank goodness. Viles are the way to go but I wanted to try "pharma grade' test for month.