US$ 29.60
b12 injection 1000 mcg Sandoz Vitamin Injectable Solution - mcg/10 mL Vitamin B12 is not made by the body and is provided either by diet or supplementation B12 vitamin Store Vitamin B12
Description
You may see increased redness, swelling, or irritation in affected areas

Data availability

Sublingual is probably slightly better than oral B12 capsules but I dont think the difference is that huge

Molecular Pain 2016