Does layering SPF adds up to your sun protection?

Are you slathering on your sunscreen with SPF 30, moisturizer with SPF 23 and foundation with SPF 22 and thinking, “I’m getting SPF 75, awesome!”. Well, I’m sorry to be break the bad news, but it doesn’t work like that.

Unfortunately, layering sunscreens will not give you added SPF protection. This is just a myth. I, myself believed that using a smaller SPF sunscreen and layering other SPF products will save me enough from the sun and the oiliness that comes with high SPF sunscreens. 
But, the ingredients of sunscreen don’t mix together to increase the SPF level, so each product you apply retains its own SPF. That means that, when you use several products with SPF, you end up only with the SPF of the highest sunscreen you applied.
Thus, If instead, you apply sunscreen with SPF 30 and foundation with SPF 15, you end up with only SPF 30, not 45. I know, that’s a bummer! However, layering sunscreens is not completely useless.
While layering such products will not add up the SPF, but it may increase your overall coverage. Ofcourse, if you’re dabbing foundation or moisturizer on only small areas of your face, it’s wise to double up on products that contain SPF to ensure total coverage.
Sunscreen needs to be applied to all skin areas exposed to the sun, but there’s always a chance that you may have inadvertently missed a spot. If you apply more products with SPF, that risk is lessened. May be!

I hope this helped and busted the myth you might be having! 
And If by any chance you knew this before, don’t forget to share and help others. <3
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