Vitamin B2 is important for metabolism in body, also – for the formation of red blood cells and oxygen metabolism in it, function of bone marrow and formation of antibodies. It is necessary for the normal body growth and reproduction. Vitamin B2 is needed for maintaining healthy skin, nails and hair. It is necessary for normal thyroid function and immunity. Vitamin B2 supports normal functions of skin and mucous membranes, acts on fat absorption. It helps to treat migraine headache, rheumatoid arthritis, certain skin diseases (red pimples, dermatitis, eczema), is important for good vision and cataract prevention. In case of vitamin B2 deficiency, fast tiredness, lack of energy, inactivity, increased nervousness, eye pain and sensitivity, itching and burning sensation in the eyes, inflammation of skin, oral mucous membrane, conjunctiva, redness and itching of tong and throat, cracked corners of the lips and eyes, rough and oily skin, oily hair, breaking nails, early wrinkles on face and hands occur.