Hi there
I have been doing SI since April basically every other day. The pharmacist showed me how to SI when I begged him to, he taught me to grab a fold of skin on my outer thigh and inject into that. Yesterday I tried what I have seen in videos, holding the skin tight. I think I have basically been doing subcutaneous in my thighs, instead of IM. Could that account for the fact that I am not getting the results I expected from the B12?
Thanks Sita
Yes, it does sound as if you were shown SC injection.
However, SC should work just as well as IM. Indeed, many people prefer it.
The middle outer third of your thigh is where the muscle is closest to the surface . SC takes longer to be absorbed , but works eventually . Are you using Cynocobalamin , Hydroxocobalamin or Methylcobalamin? Are you supplementing with B9( folate /folic acid) which works together with B12 ? Best wishes .
Cyanocobalamin is what I am using. I got the spot right, I just was pulling the skin up and injecting into that. I am gradually trying to add in Folate, I have had so many problems and felt so unwell that I don’t want to overdo the methylation process, which I am not at all clear about.
Length of needle comes into the equation also . Between 1 - 1 1/2 inches depending on how much fat is on the thigh . There is a way of estimating this, which involves pinching the flesh at the injection site and measuring .I’ve seen it somewhere on the internet . One can use a really fine needle to inject , as B12 is really watery .
My needles are fine, 25 G, and 1 inch, I think all of that is correct. I used the IM stretching the skin method again today, it works so much better, and is painless!
First SI, the pain, ouch!
SI help for a newbie 
SI B12 - needle size?
Si disposing of needles
