Using expired b12 could certainly result in you not receiving the proper dosage due to deterioration as you now likely suspect given your setback
However, by this point, you will be deficient in the money you have spent on needless injections, so Save Face recommend a full check-up with either your NHS GP or a private doctor, who can confirm your symptoms and any genuine deficiency with a blood test, and more importantly can prescribe the best type of B12 product and treatment programme to suit your needs.
It's important to note that while these preclinical findings are compelling, human clinical trials remain limited
On the other hand, injecting nutrients directly to the cells via the muscles feeds your body instantaneously for immediate use
Does BAC Water have a Certificate of Analysis
injections TB-500 + BPC-157 For researchers seeking to add TB-500 capsules to their studies, look no further than this definitive rundown from the specialists at Peptides.org