The two are documented differently: the 10 mg vial at 600 mcg per dose (about 16 doses), the 20 mg vial at 250 mcg per dose (about 80 doses)
The key takeaway: the human evidence that exists is for the gut, not for tendons or muscle, and even that is early-phase and incomplete
Mobility limitations and chronic inflammation: Individuals with chronic joint pain, mild osteoarthritis, or longstanding musculoskeletal issues affecting quality of life
Now heres the funny bit The MHRA in responding to our petition stated: Vitamin B12 could not legally be classified as a medicine that can be made available for sale without prescription in pharmacies because it is an injection and because the condition it is licensed to treat, pernicious anaemia, needs a clinician to diagnose it, and monitor its treatment (see point IV above)
Tendon studies often report changes in tensile strength, collagen alignment, and cellular infiltration