It is something that is key and should be used religiously. You need to make sure they are the called out ingredients in the active ingredient list or you’re probably doing your skin more damage. People have a false sense of security with sunscreens. You need things that won’t let UVA light get through or you will accumulate more UV damage. This explains why the rate of skin cancer and aging has continued and progressed even though we’re wearing more sunscreen than before.