1. Check the security code: Now all food potassium iodide tablets are equipped with security codes, and consumers can check the authenticity of the products through the security codes. If the security code can't be queried or the query results show that it is fake, then the product is fake.
2. Check the packaging and labels: real Now Foods potassium iodide tablets are beautifully packaged and clearly labeled, with detailed information of the products, such as product name, specifications, production date and shelf life. If the packaging is rough, the label is vague or the information is incomplete, it is a fake.