is oral b12 as effective as intramuscular injections Best Vitamin Injection Site: Administering B12 Shots The Truth About B12 Injections:

These products are intended to support controlled experimental settings where consistency in preparation, storage, and measurement is important for research protocols

A few of them break, and blood seeps into the tissue around them

As such, the American Academy of Otolaryngology advises against recommending popular supplements such as zinc, magnesium, lipoflavonoids, and melatonin for the treatment of chronic tinnitus

Chawla, Thiamin Deficiency in People with Obesity, Adv

Its probably not necessary to take B complex every day if you eat a healthy diet and have no medical conditions that make it difficult to absorb the vitamins from your food