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Last summer I bought this set because as much as my body is tan my legs stay put white. But when I bought this set the summer was ending and so I did not use. Now that summer come back I decided to try again. The first packing (yellow) is an exfoliating that must be used before applying the second cream to remove dead cells and allow a more uniform tan. The second package is the self-tanning cream that once you begin to put into effect after one hour of application. I did not notice very significant differences in the color of my legs but I will continue to use, at least so my legs do not clash with the rest of the body.
(pictures are my own)