Journal of Biological Chemistry, 289(28), 1950819518
Peptide stability after reconstitution is a genuine formulation problem: spray bottles kept at room temperature and used over weeks are likely delivering a partially degraded product, though exact rates are unpublished
However, some people may not be suitable for B12 injections
Methylmalonic acid (MMA) and homocysteine levels become elevated in B12 deficiency, but these tests are not routinely available in all NHS laboratories and can be confounded by renal impairment
You do not need stomach acid to absorb B12 from an injection
Causes of Chronic Inflammation: Poor diet, chronic stress, hidden food sensitivities, environmental toxins, and underlying autoimmune conditions can all keep your body's inflammatory response stuck in the "on" position