This discounted product has a best by date of 1-4 months: it is not eligible for returns or refunds.
Regular priced products have a best by date over 4+ months.
This at-home test can be used to ensure you have adequate levels of Vitamin D with Results in 10 Minutes. (1 Test)
Step 1: poke finger with lancet (warm up hands if patient isn't a "bleeder")
Step 2: suck up blood into the little syringe, up to the required line
Step 3: put drop(s) of blood into the correct hole
Step 4: put diluent drops into the other hole
Step 5: wait 5-10 minutes and read the range given on the reference card
Keep this product in a location between 30C to 2C