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Set up and prepare

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.
Before you begin
Check your emails for any extra instructions
Some tests have additional requirements you might need to follow.
Wait after recent health events
If you've had a recent infection or injury, wait 2 weeks before testing.
Stop taking certain supplements
  • Creatine: Stop 2 weeks before
  • Iron: Stop 24 hours before
  • Biotin: Stop 8 hours before
Avoid intense exercise
Stop intense exercise 3 days before your test. If testing liver function, stop 7 days before instead.
Avoid meat for 12 hours before your test
Don't eat meat for 12 hours before taking your sample.
Fast for 8 hours before your test
Don't eat anything for 8 hours before taking your sample (you may drink water).
On the day of your test
Drink at least 2 glasses of water
Have at least 2 glasses of water 30 minutes before taking your sample - being well-hydrated helps with accurate results.
Take your sample in the morning
If testing hormones, check your emails for any test-specific instructions on timing.
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.
Continue
Please take note
  • Thriva testing is for people who are 18+.
  • Keep your kit away from children, animals, sunlight, fire and smoking.
  • Only take your sample with items in your kit.
  • Your kit must only be used by the person who ordered it