FreshLook Colors are opaque lenses which are primarily recommended for users who want to change a natural dark eye colour. The lenses have a single colour layer, as opposed to FreshLook ColorBlends which have three layers.FreshLook Colors are monthly disposable lenses which should be taken out every evening for cleaning, and are then reinserted the next morning. After a months use, the lenses should be disposed of and replaced with a new pair.Zeroprescription versions of these lenses can be ordered, and do not then need to be prescribed by an optician. However, in order to ensure that the lenses fit we recommend that you get the lenses checked by an optician. For cosmetic use of the lenses, we also recommend that you follow the accompanying manufacturers instructions for use and handling.The lens is made by CIBA Vision, a worldleading research, development and manufacturing company within the field of contact lenses and lenscare products.