Mh no, I don't think so. I used it over the Summer where I usually light up on my own. So I don't think that was included in the shampoo...
Dead Sea salt works as a wonderful lighter though when it comes directly from the ocean! Last year I took a trip to the Dead Sea in Jordan and stayed there for only 3 days. I lighted up like crazy and even I (!) got a tan. I should go there regularily
(...combing your hair after Dead Sea swimming is not so much fun on the other hand)