Benoquin Ointment contains the goodness of Monobenzone and Hydroquinone. Monobenzone is added in the Benoquin cream to lighten skin tone. This is particularly used to remove dark patches of skin and especially works for those who are experiencing vitiligo to create an even look on the skin as it is applied. Hdroquinone as a whitening agent that will also work to improve how skin patches are treated and healed over time. Benoquin Ointment Keeps dark spots on the skin from being too visible.