used2juice
New member
Primo is a compound that some will get pain from, others won't. You SHOULD be safe with 100mg/ml, especially in ethyl oleate. I personally used a gram a week of 200mg/ml Primo (in regular oil) last year and got NO pain from it at all. But Krishna seemed to have a different story. So my advice...buy 10ml, see how it goes. Then buy more as desired.