YarroHen complementary feed based on Yarrowia lipolytica yeas and specially selected composition of mineral additives and herbs. Mineral substances favorably influence the growth and development of hens. As well as supporting the correct development and strength of the skeleton. A unique complex of B vitamins derived from the yeast Yarrowia lipolytica supports the reduction of stress. Applied in the final stage of laying, it supports the process of shell mineralisation, which contributes to maintaining good production results. The addition of milk thistle favourably supports the functioning of the liver and the whole digestive system.