US$ 29.84
vitamin b12 injections over the counter (Cyanocobalamin Injections) — Mountainside Medical 12 is vegetarian/vegan (non Vitamin B-12 3000 mcg Injection,
Description
Metformin works by improving the bodys sensitivity to insulin, thereby reducing blood sugar production in the liver and increasing glucose uptake in the muscles
For others, it can take longer, especially if symptoms have been present for months or if there are multiple contributing factors (iron, vitamin D, thyroid issues, sleep, stress, etc.)

You will also achieve better results if you use B Complex consistently

All use subcutaneous injection