1. Cosmetic use of a lysate of the bacterium or bacteria belonging to the genus Vitreoscilla sp. (In particular, type: Vitreoscilla filiformis), in complete culture medium as an active agent for the prevention and / or treatment of conditions of the scalp associated with dandruff, in particular associated with reproduction of pathogenic microorganisms in the scalp and / or imbalance ecofloristic scalp .2. Use according to claim. 1, where the complete fermentation medium represents the whole or part, from the standpoint of quantity, the fermentation medium used in the fermentation of said bacteria, and wherein successively performed bakterii.3 cell lysis. Use according to any one of claims. 1-2, wherein the mixture of lysate and complete fermentation medium contains cytoplasmic fraction of cell wall fragments and metabolites produced and / or released during cell lysis of said bacteria, and water-soluble metabolites generated and released spontaneously in fermentirovaniya.4 bacterium. Use according to Claim. 1, wherein said bacterium is a strain of Vitreoscilla filiformis.5. Use according to Claim. 1, wherein said bacterium is a strain of Vitreoscilla filiformis (ATCC 15551) .6. Cosmetic and / or dermatological composition comprising, in a physiologically acceptable medium, at least one lysate bacteria or bacteria belonging to the genus Vitreoscilla sp (in particular, type: Vitreoscilla filiformis or Vitreoscilla beggiatoe)., In complete culture medium, wherein said lysate in complete fermentation medium included in said cosmetic composition in an amount ranging from 0.001 wt.% to 10 wt.% relative to the total weight of said dry extract1. Косметическое применение лизата бактерии или бактерий, принадлежащих роду Vitreoscilla sp. (в частности, вид: Vitreoscilla filiformis), в полной ферментационной среде в качестве активного агента для предупреждения и/или лечения состояний кожи головы, связанных с появлением перхоти, в частности связанных с размножением патогенных мик