The lowest oil concentration they see synergy is 0.078% v/v. Assuming that's roughly the same as w/w%, that's 53 grams of oil that would have to be distributed throughout the body of a 68 kg person.
The lowest oil concentration they see synergy is 0.078% v/v. Assuming that's roughly the same as w/w%, that's 53 grams of oil that would have to be distributed throughout the body of a 68 kg person.