In order to get the SPF amount as advertised, you must apply an ounce or a full shot glass of sunblock on your body. This is a huge difference compared to those who only apply about half the recommended amount, especially those who buy a three-ounce tube then make it last for up to a whole month of outings. Remember that putting not enough sunblock could only yield half the protection on your skin.
I have seen and heard that before! There is NO WAY I am going to get a shotglass full of sunscreen to stay on my face when I go skiing!
I have a doctor friend who tried to use the stuff like that. He looked pretty funny smearing on about 10x as much as anyone else.
Here's what I think: That "shot glass full" amount is likely what they would recommend for someone going out in a swim suit at the beach. It might take that much to cover arms, legs, face, front, back, etc.
Based on experience of people here, most put on a normal amount, and maybe reapply several hours later, and they
never burn.
So what is up with that "full shot glass" recommendation?
