Tips to Stay Protected
For everyone, re-application is key to preventing damage to your skin. Use the “reapply every 2 hours” rule of thumb. That is how long manufacturers “guarantee” the product stays active to get the right amount of sun protection.
Apply liberally, don’t skimp. Whether you are using a lotion, cream or spray, the recommended amount is 1oz (that’s about a full shot glass) of product to cover your entire body. When reapplying you must use another 1 oz to continue to be properly protected. This ensures replacing the product that may have worn off, sweated off, rubbed off, or swam off. Yes, if you are exposed to the sun for most of the day you will go through a lot of sunscreen.
How much is 1oz for spray sunscreen? Since you’re not going spray your sunscreen into a shot glass to measure it out, spray enough until your skin glistens. If your spray bottle is 6 ounces, you should have 6 applications, if it’s 8 oz you’ll get 8 applications, you get the picture.
Clearly, we can see there is something amiss with SPF math.
Unfortunately, there’s not much research to explain why SPF 45, 50, 100 doesn’t give us significantly more protection (or why it exists at all. My only answer right now would be…marketing and consumerism. But as I mentioned earlier, science is ever evolving so perhaps more research needs to be done to sort out the best version of sunscreen protection.
Until that gets explained, continue to wear your sunscreen, at least SPF 15 for everyday use and SPF 30 for extended sun exposure.
Leave a comment below or email me with what questions you have about sunscreen!