It comes down to absorption
DETAILS Size: 50cm x 100 cm (19.5" x 39") Weight: 5.2kg / 11lbs Power: Voltage 110V (USA), 230V (UK), 220-240V (EU-Non UK), 120 Watts PEMF Info: 2pcs PEMF Cores Implanted
It is particularly common in individuals with certain risk factors, including those who have undergone gastric or small intestine resections, have inflammatory bowel disease, use metformin or proton pump inhibitors, follow a vegan diet, or are older than 75 years
A subcutaneous injection uses a short, fine needle to reach that layer, and it does not go as deep as a muscle injection
Vitamin B12 Supplementation in Diabetic Neuropathy MDPI article: Investigates daily methylcobalamin in type 2 diabetes neuropathy patients with B12 deficiency