What's the difference between SPF 30 and SPF 50?
SPF 30 will protect you from about 97% of UVB rays while SPF 50 will protect you from about 98% of UVB rays. Here at Supergoop! we recommend at least an SPF 30 for every single day sun protection and SPF 50 for a day of play outside. The FDA does not allow brands to claim higher than an SPF 50 rating because it gives consumers a false sense of protection. Any SPF higher than 50 will only protect from about 98.5-99% and exposes the skin to higher concentrations of chemicals that are unnecessary.
You can learn more here at the Bright Side