Earlier today, the Food and Drug Administration announced new labeling guidlines for sunscreen in an effort to make it clear to consumers which products offer the best chance of keeping your skin from turning into shoe leather. [More]
The difference in UVB protection between an SPF 100 and SPF 50 is marginal. Far from offering double the blockage, SPF 100 blocks 99 percent of UVB rays, while SPF 50 blocks 98 percent. (SPF 30, that old-timer, holds its own, deflecting 96.7 percent).
A recently issued rule from the FDA would overhaul and expand the agency’s fight against the sun’s radiation. The proposed regulation would require sunscreen makers to test for effectiveness against UVA rays, which unlike UVB rays, do not burn the skin; UVA instead gives us an attractive bronze that can cause cancer.