I used this product on my 5-year-old son recently. The day after I noticed a black bruise going down the middle of his forehead. He has blisters on the edge of his scalp where the bruising starts, and his hair has come out in that spot also. I looked up what a chemical burn was, and it described what my sons head looks like. It actually says if there is a black mark and blisters this is the worst burn you can have because the nerves are broken down. I am so very disappointed with this product, and saddened for my sweet little boy. He is nonverbal and can't tell me if he's hurting or not, so I always have to pay close attention to him. There needs to be something done about this product because it's not safe for kids or anyone to use for that matter. I can't imagine what would have happened if it had gotten into his eyes, even though it's supposed to be tear free.