Vitamin B12 treatment can be appropriate when a deficiency or another recognized indication is established. Feeling tired does not by itself diagnose B12 deficiency.
Lipotropic is a marketing term used for mixtures of ingredients. It does not mean a product is proven to burn fat. Evidence does not support promising weight loss, improved liver or kidney function, fewer infections or a faster metabolism from these injections.
Compounded mixtures are not FDA-approved. Their ingredients, formulation and risks must be assessed individually rather than assumed equivalent to an approved medication.
Discuss whether testing or a nutritional assessment is needed, potential allergic reactions and injection-site complications, medication interactions and alternatives. Injections do not replace a balanced eating plan or treatment for an underlying illness.
For weight management, a clinician can discuss nutrition, physical activity and approved medicines when clinically appropriate. Results vary, and no injection should be advertised as a guaranteed fat burner.