Product compounded: (B12 1000MCG/B6 100MG/B5 100MG/B3 100MG/B2 20MG) PER 1ML
A lack of adequate nutrition is one of the primary contributors to a weak immune system. In a 2007 study published by the British Journal of Nutrition, micronutrients support the body’s immune system at three separate levels: physical barriers (e.g. skin and mucous), cellular immunity, and antibody production. Vitamins C, E and zinc assist the physical barriers. Vitamins B6, B12, C, D, E, folic acid, zinc, and selenium all support immunity at a cellular level. Finally, all these micronutrients, with the exceptions of vitamin C and iron, are essential for antibody production.
Unfortunately, inadequate nutrition disproportionately affects people who lack access to nourishing food due to economic factors or rely too heavily on overly-processed foods. Either of these circumstances could lead to a deficiency in one or more of the vitamins and minerals required for a healthy immune system. If your diet does not provide adequate levels of any the following vitamins and minerals, your immune system may not be operating at its best.
Cited from: https://takecareof.com/articles/what-vitamins-supplements-help-immune-system