Composition containing at least one alkoxylated surfactant from the group of polyoxyalkylene carboxylates of the formula and at least one glycolipid biosurfactant comprising rhamnolipids, sophorolipids, mannosylerythritol lipids, cellobiose lipids and trehalose lipids, wherein the surfactant or surfactants are present in the ratio of ≥ 1: 6 to the biosurfactants; based on percent by weight of active agent in the whole composition; R'-O(C b H 2b O) o -{CH 2 -CH[O(C b H 2b O) p R"]-CH 2 O} r -(C b H 2b O) q -R"' with b as an integer between 2 and 4, o, p, q are independently numbers from 0 to 75, wherein o + p + q is at least 2, r is 0 or 1, R', R" and R"' are each independently H, CH 2 COOM, or COR, wherein one or two, preferably one of the radicals R', R" and R"' represents CH 2 COOM: if R' = CH 2 COOM then o≠0 applies, if R" = CH 2 COOM then p ≠ 0 applies, if R"' = CH 2 COOM then q≠0 applies, with M = H, alkali or ammonium cation, and wherein one or two of radicals R', R" and R"' represent RCO; with R being a saturated, mono- or polyunsaturated hydrocarbon chain having 5-23 carbon atoms and RCO derived from a fatty acid mixture, wherein the proportion of 18 and more carbon atoms of the fatty acid radicals RCO is above 60 wt.-%, preferably above 72 wt.-% and particularly preferably above 77 wt.-%, and wherein the proportion of unsaturated fatty acid radicals is above 55 wt.-%, preferably above 65 wt.-%, and particularly preferably above 72 wt.-%, in each case based on the total amount of fatty acid radicals RCO of the surfactant used; and wherein the surfactant consists of a mixture of different chain lengths and degrees of saturation of the fatty acid radicals RCO as defined above and is derived from a C18 vegetable oil from the group comprising: amaranth, anise, apple, apricot, argan, arnica, avocado, cotton, borage, nettle, broccoli, canola, chia, hemp, hazelnut, beech, boxwood, thistle, spelt, peanut, tigernut, lilac, garden cress, barley, pomegranate, oat, hemp, hazelnut, blueberry, elderberry, jasmine, currant, St. John's wort, jojoba, camellia, chamomile, caraway, carrot, cherry, coriander, mullein, crambe, caper spurge, squash, Iberian dragon head, lavender, camelina, linseed, privet, lupine, lucerne, macadamia, corn, almond, marula, mirabelle, melon, poppy, mongongo, moringa, evening primrose, olive, oil radish, rocket, passionflower, pecan, peach, plum, pistachio, cranberry, jatropha, rapeseed, rice, marigold, turnip rape, safflower, sage, sea buckthorn, black cumin, sesame, sesame leaf, mustard, sunflower, soybean, tobacco, walnut, grape, wheat, meadowfoam and wild rose; and combinations thereof. b as an integer between 2 and 4, o, p, q are independently numbers from 0 to 75, wherein o + p + q is at least 2, r is 0 or 1, R', R" and R"' are each independently H, CH 2 COOM, or COR, wherein one or two, preferably one of the radicals R', R" and R"' represents CH 2 COOM: if R' = CH 2 COOM then o≠0 applies, if R" = CH 2 COOM then p ≠ 0 applies, if R"' = CH 2 COOM then q≠0 applies, with M = H, alkali or ammonium cation, and wherein one or two of radicals R', R" and R"' represent RCO; with R being a saturated, mono- or polyunsaturated hydrocarbon chain having 5-23 carbon atoms and RCO derived from a fatty acid mixture, wherein the proportion of 18 and more carbon atoms of the fatty acid radicals RCO is above 60 wt.-%, preferably above 72 wt.-% and particularly preferably above 77 wt.-%, and wherein the proportion of unsaturated fatty acid radicals is above 55 wt.-%, preferably above 65 wt.-%, and particularly preferably above 72 wt.-%, in each case based on the total amount of fatty acid radicals RCO of the surfactant used; and wherein the surfactant consists of a mixture of different chain lengths and degrees of saturation of the fatty acid radicals RCO as defined above and is derived from a C18 vegetable oil from the group comprising: amaranth, anise, apple, apricot, argan, arnica, avocado, cotton, borage, nettle, broccoli, canola, chia, hemp, hazelnut, beech, boxwood, thistle, spelt, peanut, tigernut, lilac, garden cress, barley, pomegranate, oat, hemp, hazelnut, blueberry, elderberry, jasmine, currant, St. John's wort, jojoba, camellia, chamomile, caraway, carrot, cherry, coriander, mullein, crambe, caper spurge, squash, Iberian dragon head, lavender, camelina, linseed, privet, lupine, lucerne, macadamia, corn, almond, marula, mirabelle, melon, poppy, mongongo, moringa, evening primrose, olive, oil radish, rocket, passionflower, pecan, peach, plum, pistachio, cranberry, jatropha, rapeseed, rice, marigold, turnip rape, safflower, sage, sea buckthorn, black cumin, sesame, sesame leaf, mustard, sunflower, soybean, tobacco, walnut, grape, wheat, meadowfoam and wild rose; and combinations thereof.