The present invention relates to herbicidal compositions comprising as herbicide A at least one protoporphyrinogen-IX oxidase inhibitor (PPO inhibitor), and at least one light detoxifying compound B, compositions comprising them and their use as herbicides, i.e. for controlling harmful plants, and also a method for controlling unwanted vegetation which comprises allowing a herbicidal effective amount of said herbicidal composition to act on plants, their seed and/or their habitat.