Call your health care provider immediately if you are experiencing any signs of an allergic reaction: skin rash, itching or hives, swelling of the face, lips, or tongue, blue tint to skin, chest tightness, pain, difficulty breathing, wheezing, dizziness, red, swollen painful area on the leg
Never start supplements without guidance, as needs differ widely and B12 vitamins can interact with other medications
And by doing that, it helps preserve NAD + (key energy carrying molecule), SAM (universal methyl donor), and the downstream processes that depend on them
Spreading redness, fever, lasting numbness or weakness are not normal and need medical attention