Hello. Thank you for visiting our store, we buy things in a licensed pharmacy in the European Union. The level of 25-hydroxyvitamin D in the blood is considered the best indicator of vitamin D status. The benefits of self-testing for vitamin D are convenient monitoring of vitamin D levels at a chosen time, quick results, and the ability to track changes over time. The importance of vitamin D for health: - Strong bones and teeth. - Improves mood - Promotes cognitive function - Reduces the risk of cardiovascular disease - Increases muscle strength - Maintains a balanced metabolism Composition Test cassette, capillary dropper, buffer, lancet, alcohol swab, instructions for use. Dose The testing area is selected based on the user's convenience. Before the test, place the following items nearby: dropper, buffer tube, lancet, alcohol swab. It is recommended to have a timer and an additional sterile instrument ready to stop bleeding. 1. Wipe your finger with a sterile swab and prick your finger with the lancet to squeeze out blood. Do not use the first drop of blood! 2. Using the long end of the pipette, draw the specified amount of blood and add 2 drops to well (S) of the test cartridge. 3. Additionally add 2 drops of test buffer to well (B) of the test cartridge. 4. After 10 minutes, evaluate the result. Evaluate the results using the information leaflet and the enclosed chart. This test provides preliminary results only. All components used in the kit are handled in accordance with local requirements. If possible, pack in a biohazard bag.