Sunscreens Only Partially Block the Suns Rays According to Dr. Gabe Mirkins: Coating the entire bodies of mice that are susceptible to developing melanoma skin cancers with potent sunscreens (SPF50) does not protect them from developing this lethal skin cancer (Nature, July 2014;511, 478–482). Shining ultra violet light on their sunscreen-coated skin directly damaged the DNA in their skin pigment cells, to cause melanoma skin cancer. In the same way, sunlight would damage the genes that protect a person from developing melanomas. Strong sunscreens can reduce the damage by 30 percent, but they do not prevent skin cancers.
Posted on: Thu, 30 Oct 2014 18:57:31 +0000