B12 injections do not sting when being administered

VANILLA FLAVOR Ingredients: maltodextrin, MPI 90 milk protein isolate milk ), palatinose (Palatinose), whey protein concentrate WPC 80 ( milk ), rice semolina, whey protein concentrate WPC 35 ( milk and egg ), medium chain triglycerides (MCT) (BASF), powdered golden flax seeds ( Linum usitatissimum (BevGrad XtraSmooth), hydrolyzed whey protein concentrate (Lacprodan HYDRO.365) (Arla) milk ), aroma: vanilla, conjugated linoleic acid (CLA) (Tonalin), potassium citrate, dry extract of garcinia fruit ( Garcinia cambogia 60% hydroxycitric acid, L-Carnitine tartrate (Carnipure), magnesium bisglycinate (Albion), dicalcium phosphate (DI-CAFOS), sodium chloride, powdered cinnamon, DigeZyme: digestive multienzyme complex (-amylase, protease, cellulase, lactase and lipase), L-Ascorbic acid (vitamin C), sweetener: sucralose, DL-Alpha-Tocopheryl acetate (vitamin E) (Quali-E) (DSM), nicotinamide (niacin) (Quali-B) (DSM), zinc bisglycinate (Albion), iron bisglycinate (Ferrochel for Albion), D-Calcium Pantothenate (pantothenic acid) (Quali-B) (DSM), retinyl acetate (vitamin A) (BASF), manganese bisglycinate (Albion), L-Selenomethionine, copper gluconate, riboflavin (vitamin B2) (Quali-B) (DSM), pyridoxine hydrochloride (vitamin B6) (Quali-B) (DSM), thiamine hydrochloride (vitamin B1) (Quali-B) (DSM), chromium picolinate (Chromax), pteroylmonoglutamic acid (folic acid) (vitamin B9), cholecalciferol (vitamin D), potassium iodide, biotin and cyanocobalamin (vitamin B12)

immune markers in blood/saliva were determined by ELISA/bioassay
The Nitric Oxide Pathway Your body cannot create nitric oxide from nothing