Maybe if you mix 10 with 15, assuming you cover yourself exactly 50-50 with it, you’ll get 13.5, the average of the two. The 10 is doing nothing but weakening the 15. Or, it could be, you still get 15, whatever the strongest is, if it can’t be diluted by the weaker. Any chemists reading?
Combining a 10 with Dehlia’s 15 will just water it down (maybe to a 12 1/2), Monty, not add on more SPF, you cretin! Here’s an idea. Go to the nearest store and buy some SPF 35 or higher….
When I apply sunscreen, I start sweating so hard that the sunscreen is gone immediately. Moreover, the oil hurts my eyes and the sweat makes me burn even faster.
ccomebacktour over 5 years ago
Solar powered ??
Kroykali over 5 years ago
I’m still waiting for the sunblock pills.
Hoosier Poet over 5 years ago
Logically, an SPF 10 mixed evenly with an SPF 15 would result in an SPF 12.5. Not sure how the Chapstick would factor in…
nitromicro over 5 years ago
So by that logic, if I put on 50spf sun block twice, I get 100? Nope.
micromos over 5 years ago
Stay home its 100.
belgarathmth over 5 years ago
Maybe if you mix 10 with 15, assuming you cover yourself exactly 50-50 with it, you’ll get 13.5, the average of the two. The 10 is doing nothing but weakening the 15. Or, it could be, you still get 15, whatever the strongest is, if it can’t be diluted by the weaker. Any chemists reading?
Richard S Russell Premium Member over 5 years ago
My preferred sunblock — with SPF of about 10,000 — is a roof.
Rob Wilson Premium Member over 5 years ago
I enjoy not having this problem when I go out.
cuzinron47 over 5 years ago
Forget the calculator, get a brain.
craigwestlake over 5 years ago
Just rub your body with garlic oil; you’ll smell so bad even the sunlight will avoid you…
Night-Gaunt49[Bozo is Boffo] over 5 years ago
What we need is a variable melanin layer and an ultraviolet subcutaneous blocker.
Sisyphos over 5 years ago
Combining a 10 with Dehlia’s 15 will just water it down (maybe to a 12 1/2), Monty, not add on more SPF, you cretin! Here’s an idea. Go to the nearest store and buy some SPF 35 or higher….
Bryan Farht over 5 years ago
When I apply sunscreen, I start sweating so hard that the sunscreen is gone immediately. Moreover, the oil hurts my eyes and the sweat makes me burn even faster.