syringe needle for vitamin b12 injections Best (Size & Gauge) · PA Relief 3mL | 25G x 1"

I am not a medic and the above are only some 'thoughts' prompted by your post - which may well be incorrect (and I hope someone will tell me if they are )

Methionine is an essential antioxidant and amino acid which helps the growth of new blood vessels

The Neo-B12 injection datasheet says this is for keeping B12 levels up

Vitamin B12 levels are usually tested with a blood serum test, and values below approximately 170250 picogram per milliliter in adults are considered signs of deficiencies

Weight Loss Support: B12 injections are sometimes used as part of weight loss programs, although they are not a standalone solution for weight management