Agents for lightening keratinic fibers include at least two preparations (A) and (B) packaged separately from one another, as well as optionally a further preparation (C) packaged separately from (A) and (B), which are mixed immediately before utilization to yield a utilization mixture, wherein preparation (A) contains at least one persulfate, and the preparations (B) are flowable and contain at least one oxidizing agent, and where preparations (B) and/or preparations (C) further contain(s) at least one natural polymer.