So this lipstick that contains a little dried flower, 14k gold flakes, and that is transparent is exploding in popularity in the beauty blog/vlog/instragram world. It looks pretty, but I don’t see it as particularly practical. http://kailijumei.tictail.com/
The main ingredient that provides the effect is a colorant known as “Red 27,” a red dye which is colorless when dissolved in a waterless base. When it comes in contact with moisture, the change in solubility and pH causes the dye to turn bright pink.