Hey guys ive tried searching for this but im getting mixed results. I recently bought a 100ml bottle of B12 1000mcg. I did a subq 1cc pin last week (stomach) and didnt seem to get anything from it. A friend said it needed to be pinned intramuscular. What do you guys recomend subq or intramuscular or does it matter? Also is 1cc per week enough @ 1000mcg ? Thanks in advance guys.