who can administer a b12 injection How to Give Injections at Home to Yourself · PA Relief Self-Administering B12 Injections: A Step-by-Step

there are factors such as humidity that lengthen its drying time)

If it persists beyond 48 hours, you may be reacting to the concentration

Freezing causes ice crystal formation within the solution, which physically shears peptide molecules and denatures the protein irreversibly

I could go on for weeks because Ive become something of an expert in this area of pure necessity because I was literally suicidal because of my fatigue and had my dissertation research not led me down the path it did I might still be in hell of actually dead either at my own hand, because chronic fatigue is a living hell, of through irreversible neurological damage

AACR Meeting Abstracts (2018) 78:4563

The right next step is a conversation with a licensed provider who can assess whether it fits your situation, not a purchase based on a forum post