The present disclosure relates to blonding agents which serve as a lightening agent for keratinic fibers, in particular human hair. Furthermore, the present disclosure relates to a cosmetic product comprising the blonding agent contained in a packaging impermeable to water vapor. Furthermore, the present disclosure relates to a method for blonding human hair. The blonding agent is an anhydrous, powdered cosmetic composition, wherein the cosmetic composition contains at least one oxidizing compound and a mixture of thickening agents.
