MARKET INNOVATION! Measure the vitamin D level in your blood in only 15 minutes! The kiweno Vitamin D rapid test - the most innovative solution to check your vitamin D level yourself! CE certified. Our innovative Vitamin D rapid test gives you exact results within a few minutes. The rapid test is used to determine your vitamin D concentration in the blood. Our kiweno vitamin d app guides you through the entire test procedure: For this we need a few drops of blood, which are applied to the test