SKU: 57176235104

ZRT Cortisol Test

Sale price$98.89 Regular price$109.88
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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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4.2 ★★★★★
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Shaun H.
Massapequa, US
★★★★★ 5
Amazing pens/markers
Color: Multicolor, Size: 1 Count (Pack of 4), Style: Fine
Bought these for my son and I- we had the opportunity to meet with several of his favorite professional NHL players. He wanted to have a lot of his card collection signed so I did a little research and saw that this is the pens that the sports card companies use for autographs... I tried them and they are everything they advertise... Beautiful card autos!
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Reviewed in the United States on May 14, 2026
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Austin P.
Louisville, US
★★★★★ 5
Good quality markers for Autographs
Color: Assorted Colours, Size: 1 Count (Pack of 1), Style: Medium,Permanent,Fine
These work fantastic on sports cards that are paper quality and will work on chrome cards but I’d look into how to prep them so it sticks the best. Good value for the money and doesn’t seem to streak at all.
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Reviewed in the United States on June 24, 2025
B
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Brian
Battle Creek, US
★★★★★ 5
No more illegible calendar!
Color: Multicolor, Size: 1 Count (Pack of 4), Style: Fine
I love these. My calendar and To Do whiteboards are now clear. No more fat, smudged writing!
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Reviewed in the United States on May 25, 2026
M
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My2Cents
Omaha, US
★★★★★ 5
Good bang for the buck, Solid colors!
Color: Multicolor, Size: 1 Count (Pack of 4), Style: Fine
I added the Staedtler 318-WP4 Lumocolor Permanent Universal Pens to my art supplies, and they have quickly become a favorite. The fine point of 0.6mm allows for precise and intricate detailing in my artwork. The assorted colors in the set are vibrant and versatile, making them suitable for a wide range of creative projects. These pens are not only reliable but also long-lasting, ensuring that my art stands the test of time. A fantastic addition to any artist's toolkit!
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Reviewed in the United States on October 1, 2023
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JBM
Los Angeles, US
★★★★★ 4
professional and personal use.
Color: Assorted Colours, Size: 1 Count (Pack of 1), Style: Medium,Permanent,Fine
The STAEDTLER Lumocolor Universal Pen is a versatile and reliable tool that I highly recommend for both professional and personal use. Here's why it's become a staple in my collection: Pros: 1. **Versatile Medium**: The medium felt tip of this permanent marker is perfect for a wide range of applications. Whether I'm writing, drawing, or labeling, the tip provides consistent lines and smooth, effortless writing. 2. **Permanent Ink**: The permanent ink dries quickly and is waterproof, smear-proof, and fade-resistant, making it ideal for projects that require long-lasting durability. I've used it on various surfaces, including paper, cardboard, plastic, and metal, and the results have been consistently excellent. 3. **Vibrant Colors**: The ink colors are vibrant and bold, adding visual impact to my projects. Whether I'm using black for precise labeling or opting for a pop of color for creative purposes, the Lumocolor Universal Pen delivers rich, saturated hues. 4. **Comfortable Grip**: The pen features a comfortable grip that allows for extended periods of use without causing hand fatigue or discomfort. The ergonomic design ensures a secure and comfortable hold, making it a pleasure to use for both short and long writing sessions. 5. **Durable Construction**: STAEDTLER is known for its high-quality craftsmanship, and the Lumocolor Universal Pen is no exception. The pen is well-built and durable, withstanding daily use without drying out or experiencing ink leakage. Cons: 1. **Slightly Pricey**: While the quality of the Lumocolor Universal Pen justifies its price, it may be slightly more expensive than other permanent markers on the market. However, I believe the reliability and performance are well worth the investment. Overall, the STAEDTLER Lumocolor Universal Pen is a top-notch permanent marker that consistently delivers exceptional results. Its versatility, vibrant colors, and durable construction make it a valuable tool for any creative or organizational endeavor.
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Reviewed in the United States on May 17, 2024

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