Knowledge is power. 

Understanding your body's natural cortisol patterns can help you better assess when you're out of balance. 

What is Cortisol? 

Cortisol is your body's main stress hormone. It's released when you perceive a threat. The resulting "fight or flight" response is useful when trying to overcome a real physical challenge, but frequently our cortisol response is elicited in inappropriate circumstances. Because our brain is lousy at interpreting the difference between real and perceived threats, (a bear attack vs. another email notification from your boss) many of us are living in a state of chronic stress which wrecks havoc on our bodies and minds.

How does chronically elevated cortisol affect my body? 

While every body responds differently (which is why individual testing is so important), chronically elevated cortisol levels are implicated in:

  • Weight gain/Increased appetite/cravings for fats & sugars

  • Depressed Immune system

  • Decreased serotonin/dopamine (happy hormones)

  • Intensified ageing process

  • Decreased brain cells & ability to learn

  • Lowered testosterone/sex drive



Each kit comes with: 

  1. Screw top sampling tubes (for collecting saliva)

  2. Pre-paid return envelope/shipping container

  3. Detailed instructions for sampling

Results are returned via email typically within a week of sending. Full consultations and interpretation of results are recommended.  

How is Cortisol Tested?

We offer saliva testing through ZRT Laboratory. Saliva testing is used for measuring the bio-available concentrations of hormones like cortisol, estrogen and testosterone. This sampling method is non-invasive and allows individuals to collect saliva at home at specific times, which is important for accurately measuring hormone levels.

Why ZRT Laboratory?

At Biologic Balance, we chose ZRT Laboratory so that we can provide the best in the business! With 20 years of experience and results from over eight million tests, ZRT Laboratory is a recognized leader in innovative, safe, and meaningful hormone and wellness testing. Individuals, health care providers in all 50 states and in 96 countries, and research teams worldwide use our tests, including the Centers for Disease Control and Prevention, the National Institutes of Health and many renowned universities.


Today, ZRT Laboratory offers you far more than numbers alone. They offer a total commitment to the best science and the best people, for the best in trusted, personalized hormone and wellness testing — the picture of health.

Learn More About Their Founder, Dr. David Zava