b12 injection 1000 mcg ml Out of Stock - VITAMIN (Generic) Injectable Solution, 1000-mcg/mL, 100- vial - Easy Refills Cyanocobalamin (B12) Injection 1000 mcg/mL,

Get labs, correct any gap, and then keep your levels covered with a daily supplement like Building Blocks so you can focus on the things that actually move the needle

Copper ion load from AHK-Cu remains well below toxic thresholds even at 2mg daily, but chronic use beyond 6 months lacks human safety data as of 2026

This includes confirmed low serum vitamin B12 levels, pernicious anaemia, malabsorption states such as coeliac disease, inflammatory bowel disease, or post-gastric or bariatric surgery, unexplained anaemia, neuropathy or neurological symptoms consistent with vitamin B12 deficiency, a long-term vegan diet with symptoms or low levels, or failure of oral vitamin B12 supplementation

It supports red blood cell production and overall vitality

Kids 4-8 Years 1.2 mcg