Testomag may be a brand/product name with different formulas, so its purpose depends on the label. Some products combine magnesium, zinc, vitamin D, or herbs and market “testosterone support.” But you cannot assume clinical effects from the name alone. Check the ingredient list, doses, and claims. If hormones are the real goal, confirm with lab tests and follow a clinician’s plan. Supplements do not replace diagnosis or treatment, and multi-ingredient products raise interaction and excessive-intake risk.