b12 deficiency injections or tablets vs. Oral Supplements: Which Is Better? Vitamin B12 Injection: Energy Boost
Description
Product Specifications 5-amino-1MQ is a small molecule that blocks the activity of the enzyme called nicotinamide N-methyltransferase (NNMT)

Because it's not always obvious whether ingredients are derived from animal products or by-products, those following a vegan lifestyle should look for vitamins that are clearly marked "vegan" or have the Certified Vegan seal
Appearance: Lyophilized Powder
this is a medical emergency requiring immediate intervention (epinephrine, etc.)

Gently swirl the vial with circular motions (NEVER shake!) for 30 to 60 seconds until all the powder has dissolved