As with any weed killer, it is always important to read and follow the manufacturer's instructions carefully. This is especially true when using products that contain chemicals that could potentially be harmful if used improperly. That said, Scotts Weed B Gon is generally considered safe to use according to the manufacturer's directions. However, as with any chemical product, there is always a potential for side effects or other problems. If you have concerns about using this product, be sure to speak with your doctor or other healthcare provider first.