SKU: 57176235104

ZRT Cortisol Test

Sale price$98.89 Regular price$109.88
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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1

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Description

ZRT Cortisol TestTHIS TEST INCLUDES A 30 MINUTE CONSULTATION WITH ONE OF OUR DIETITIANS UNLESS THE "NO REVIEW" OPTION IS SELECTED During this consultation your consulting dietitian will email you the results of your test, go over the report, create a plan of action and answer any questions you may have. After purchasing a staff member of Vidal Coaching will contact you within 1 2 business days to acquire any additional information and to schedule your consultation.

THIS TEST INCLUDES A 30-MINUTE CONSULTATION WITH ONE OF OUR DIETITIANS UNLESS THE "NO REVIEW" OPTION IS SELECTED

During this consultation your consulting dietitian will email you the results of your test, go over the report, create a plan of action and answer any questions you may have.

After purchasing a staff member of Vidal Coaching will contact you within 1 – 2 business days to acquire any additional information and to schedule your consultation.

All Lab Sales are Final


SHIPPING INCLUDED*

*For U.S. order only. ADDITIONAL FEES MAY APPLY FOR INTERNATIONAL SHIPPING.*

 

 

Cortisol Patterning 

Cortisol is synthesized by the adrenal glands and released into the bloodstream in response to stress signals from the brain. In the bloodstream cortisol is mostly bound up by Cortisol Binding Globulin (CBG) and albumin, leaving only about 1-3% bioavailable to enter tissues and invoke a biological response. The bioavailability of cortisol can vary considerably due to different levels of CBG; liver synthesis of CBG is controlled by various hormones, such as estrogens, thyroid, and cortisol itself. Salivary cortisol reflects the amount of cortisol that escapes binding proteins, and enters the tissues throughout the body, including the salivary glands and saliva.

As such, saliva is representative of the bioavailability of cortisol to target tissues throughout the body. Saliva collection at four time points throughout the day (morning, noon, evening, and night) provides a simple and convenient means for assessing not only the bioavailability of cortisol but also its circadian pattern of synthesis

 

SALIVA TESTING

Saliva testing is used for measuring hormones like cortisol, estrogen and testosterone, and its non-invasive collection asks patients to spit into a plastic tube. This sampling method allows patients to collect saliva at home at specific times, which is important for accurately measuring hormone levels.

Why do we test hormones in saliva? Steroid hormones in the bloodstream are 95-99% bound to carrier proteins, and in this form are unavailable to target tissues. Saliva testing measures the amount of hormone available to target tissues – the bioavailable amount. For this reason, saliva testing better relates to specific symptoms of excess or deficiency, and is a good option for monitoring hormone therapy.

ZRT is one of the first labs to measure hormones in saliva, and helped establish the method that made saliva hormone testing commercially viable for health care providers and patients around the globe.

This test includes:

  • C(x4)

 

These labs are for nutrition analysis only. They are not intended to diagnose, treat, cure, or prevent disease. They are not intended to replace the advice of a physician. Always consult your physician on any matters regarding your health and before nutritional changes.


ADDITIONAL FEES MAY APPLY FOR INTERNATIONAL SHIPPING. If you live outside of the United States, please contact [email protected]. The additional international shipping fee will be invoiced after the purchase of the lab. 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 57176235104

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Susan E
San Leandro, US
★★★★★ 5
Really nice!
Color: Brown
Nicely made. The wood has a lovely finish and rich color. The compartments have a softer bottom so you don’t have to worry about scratching your glasses or other surfaces. Great assortment of compartment sizes to help organize your items. Kicking myself for not getting one sooner.
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Reviewed in the United States on March 14, 2026
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Andrei Feier
Phoenix, US
★★★★★ 5
Great quality and perfect desk organizer
Color: Brown
Great quality and perfect desk organizer
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Reviewed in the United States on January 27, 2026
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Kyle M
Carnegie, US
★★★★★ 5
Luxury Organization
Color: Pebble Black, Size: 9.5in x 7.9in
Keep your keys, wallet, and all other every day carry items in one, high quality location. Very nice material and build quality that accessorizes my dresser perfectly. The size is appropriate for everything that belongs in your pockets. Overall the best value for your $ I’ve seen, especially if you can catch a discount.
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Reviewed in the United States on March 30, 2026
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Daniel Fuller
Phoenix, US
★★★★★ 5
Good quality, good looking
Color: Sand Brown, Size: 9.5in x 7.9in
High quality build and nice-looking. Perfect for my guest room, where people leave wallets and keys and chapstick and sunglasses and whatnot. Love it
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Reviewed in the United States on February 13, 2026
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amiller
West Palm Beach, US
★★★★★ 5
Very nice! Great gift!
Color: Pebble Black, Size: 9.5in x 7.9in
The photos don’t do this item justice. This is very high-quality construction and great look. My son loved it. I will order more for gifts.
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Reviewed in the United States on April 17, 2026

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