You have to make your own vehicle. Ethanol/PG works but it you'll want something that penetrates the skin better. Also, you'll want to make sure the CB is form 3, otherwise it wont dissolve and want pass through skin.
You see? It's just too inconvenient to get these drugs. Expensive, hard to get, you have to create it yourself. Lastly, there aren't even before/after pictures of the efficacy of these drugs. I just can not go by word of mouth.
Bookmarks