There are 4 ranges to choose from. Natural Colours, Hidrocor, Hidrocharme and Solflex Natural Colours. The Natural Colours range come with a discrete limbal ring and pigments in the colour to offer a natural blended look with medium opacity. Hidrocor come without a limbal ring and with very minimal pattern with high opacity offering a brighter yet natural look. Hidrocharme provides a combination of the other 2 ranges. It comes with a more prominent limbal ring yet the colour is pattern free and offers high opacity. Solflex Natural Colours are similar to the Natural Colours range, except that they need to be disposed on a Monthly basis and are slightly darker in opacity with a more vivid limbal ring.