U don't have to send a whole vial, u order those lil perfe sample vials and u put 1ml or 1.5ml in it and u put a piece of tap on it with a letter and u create a key this is ur testing one or more samples, if ur just doing one u don't need to.... 100$ per sample for oils and orals.... To test hgh it cost more somewhere around 200$-250 I believe , ull have to double check with jano, but no sense in sending a whole vial and losing all that gear.... U can get a bag of like fifty of those perfume sample vials/containers for like 8-10$ u put ur sample in that and close it up tight, u can use those or u can use the actual sample containers comes in packs of like ten jano will send u a link to both but as recently he's been using the lil perfume sample bottles..... Oral samples go into a zip lock sandwich bag or ever better alil gram or dime bag it's very easy and simple, biggest thing is picking which shipping u wanna use jano explains everything and he very much prefer that u send the sample in blindly also