In album: http://www.healthyminimarket.com/naturacel/
It only agreed to be inside the 1920s that the notion of becoming sun tanned became fashionable, when fashion designer Coco Channel started sporting a tan. Years later, in addition, it gave birth to the business of manufacturing goods that could provide adequate skin protection against sunburn, until sunscreens became a big industry. Chemists had begun experimenting with different substances and synthetic formulations to fulfill the requirements for effective sunscreen protection. Experiments also involved ways of measuring the extent of ultra violet radiation (UVR) protection a certain product could provide. This measure is what we recognize today as SPF or Sun Protection Factor.>> http://www.healthyminimarket.com/naturacel/
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