There I have used the spf30 for the past 3 years since it is the only sunscreen I have found which doesn’t cause me an allergic reaction whereby my eyelids swell up after use of every other sunscreen on the market. I was nervous when I saw that Dormer’s spf30 was no longer available so I started to use their SPF15 this summer and it worked great. No sunburns and no allergic reaction!