There are a number of non-hydroquinone skin lightening products on the market. It is generally believed that these are not quite as effective as those that contain hydroquinone, but for mild hyperpigmentation, or for those concerned about the side effects of hydroquinone, they may be a good option.
Ingredients that have been shown to have skin lightening properties include azaleic acid, arbutin, licorice extract, soy, kojic acid, niacinamide, vitamin C, and retinol, among others. A number of commercial products on the market contain a mixture of several active ingredients in an attempt to provide more meaningful results.
In order to minimize the risk of side effects creams that contain Hydroquinone 4 cream are ideally used in brief cycles of 3-6 months, and longer-term use should be supervised by a physician.