Disount Tanning Lotions, and Tanning Bed Bulbs. Their free radical generation increases cellular damage and changes that have some problems. Having profit as a chief aim: a commercial book, not a scholarly tome. A word about sunscreenschances are you spend some time in natural sunlight. She looked first at four studies. Dihydroxyacetone, or dha, reacts with amino acids in the outer layers of the skin to produce a browning effect. Good protection against the sun means using a suntan lotion or oil with a protection factor. Its like being on a round-a-bout in a playground.