b12 oil/sterile oil

i heard primo hurts and most peps cut it with sterile oil or b12 my question is where to purchase these oils? any web sites?
thanks

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which one is better b12 or sterile oil

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Originally Posted by iceman9

which one is better b12 or sterile oil

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I use b12 to cut. the only tricky part can be the fact that you are combining oil/water in the syringe, but it is no problem when you figure things out. just draw oil first, then b12.