Humalog Mix 25 100IU/3ml 5'sHumalog Mix25 is used to treat diabetes. Humalog Mix25 is a premixed suspension. Its active substance is insulin lispro. 25 % of the insulin lispro in Humalog Mix25 is dissolved in water and it works more quickly than normal human insulin because the insulin molecule has been changed slightly. 75 % of the insulin lispro in Humalog Mix25 is available in a suspension together with protamine sulphate, so that its action is prolonged. You get diabetes if