It's important to follow this guidance for the most accurate test results. If you don't have time right now, it's best to wait until you're able to complete each step below.
Check your emails for any extra instructions
Some tests have additional requirements you might need to follow.
Fast for 8 hours
Collect your sample in the morning after fasting for 8 hours - this is important for getting accurate results.
Avoid Biotin supplements for 8 hours
These supplements can affect some of your results.
Have 2 glasses of water
Aim for at least 2 glasses of water 30 minutes before you take your sample - being poorly hydrated can affect some results.
Do your test Monday-Saturday
Avoid Sundays, as your sample might sit in the post too long.
Set aside 30 minutes
Results take as little as 2 working days once posted. Post your sample when the outside temperature is below 25°C.