What You Need to Know

<aside> ⚠️

BEFORE YOUR APPOINTMENT:

• Must Fast 8+ Hours (water only)
• Schedule Before 9am (for most accurate results)
• Lab Selection:
  • NY/NJ/RI Residents: Must use Bioreference Labs
  • All Other Locations: Quest Labs
• Payment: Select "Someone Else Is Responsible" (Eternal covers it)
• Questions? Contact Concierge through your Eternal app. </aside>

48 Hours Before

• No intense exercise (light activity only: 45-60 min Zone 1 cardio)
• Stay hydrated (1.5-2.3L water daily)
• Stop biotin supplements (common in hair/skin vitamins)

8 Hours Before

• Begin fasting (water only)
• Take prescribed medications (unless told otherwise)
• No food, drinks, or vitamins

Morning Of

• Drink 8-16oz water (helps with blood draw)
• Bring your Eternal app (for verification if needed)

Common Questions

Can I walk in without an appointment?

Yes! If you can't schedule before 9am, we recommend arriving 15 minutes before the lab opens. Follow all other preparation guidelines.

Why before 9:00am?

For the most accurate hormone results (cortisol, testosterone, thyroid). If not possible, some results may be less precise.

Will I need to provide urine?