How many hours of protection does an spf 45 sunblock offer?

I buy NO-AD and it doesn’t mention this on the bottle. Also, is the baby version spf 45 offer more protection than the one in the regular blue bottle?

Sunblock generally works for a few hours and wears off. It wears off quicker if you jump into the water. Then you have to reapply when to get out.

The spf number is the amount of protection. So any bottle that says spf45 would give you the same protection. The carrier lotion might be different. But as long as you reapply every few hours or after you get out of the water, you’d be ok.

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