Hi I recently purchased b12oils from Australia. I was a little disappointed that one dose of the mb12 is only 0.75mg. That size dose won't even touch the sides. I am currently injecting 10x that amount daily. Sometimes higher, so ten sprays of the oil become messy and costly. So I have resolved investigate manufacturing my own b12oil but with a higher concentration because if the absorption is close to injection then it has to be a better option. I guess the first question as b12 is water soluble, does it dissolve in oil? Also, can anyone discuss their own attempts at DIY b12 oil?