This organic SPF15 sun lotion has a naturally derived ingredient which works to speed up your body\'s ability to tan. The key active ingredient that works this \'magic\' is called Inositol this is a naturally occurring nutrient which is derived from the fruits of the Carob tree and which acts as a stimulant for the formation of melanin. Trials on human volunteers have shown that the speed of tanning increases by 25% the intensity or depth of suntan increases by over 28% and when used after obtaining a tan reduces the tan-fading rate by almost 50%. A SPF15 sun lotions offers 93% protection against UVB rays in comparison a SPF30 lotion only offers 4% more protection!