buying b12 injections uk METHYLCOBALAMIN SELF INJECTION KIT 5MG X 6 AMPOULES | Dr Ayanna Knight - Cosmetic Skin Care, Health & Wellbeing | Doctor Led Advanced Aesthetic Skin Care & Wellness Clinic B12 - Hydroxocobalamin - 30
Description
Neuropsychopharmacology 1996;15:45664

PlexusDx recommends pinching a fold of skin between your thumb and forefinger, then inserting the needle at a 90-degree angle perpendicular to your skin, not at an acute angle that increases the risk of penetrating deeper tissues

Prescribing exercise for individuals with type 2 diabetes: recommendations and precautions

Conclusion To answer the original question directly: high B12 levels themselves don't typically cause symptoms
