If you had said "Sunscreen can be harmful" as opposed to "Sunscreen is harmful", your message might have been better received. Sunscreen is just a tool. It can

If you had said "Sunscreen can be harmful" as opposed to "Sunscreen is harmful", your message might have been better received. Sunscreen is just a tool. It can do good things for you if you use it properly, and bad things if you don't.