Hormone Health Hub: Expert Insights on Testing, Balance & Better Living — saliva hormone testing

Cortisol can be measured in saliva, blood and urine — but each method tells a different story. Saliva reflects bioavailable cortisol, blood measures total output, and dried urine captures the full circadian pattern. This article explains the clinical differences and helps you choose the right test.

One in eight women will be diagnosed with breast cancer in their lifetime. But many risk factors are modifiable — including hormone imbalance and excess weight. Discover the two most important actions women can take to reduce breast cancer risk, and how hormone testing can help identify hidden imbalances before they become a problem.

Itchy, Bitchy, Sweaty, Sleepy, Bloated, Forgetful and All Dried Up — the seven dwarves of menopause are all too real for millions of women. But these symptoms aren’t inevitable. Undetected hormone imbalances are behind most of them, and testing is the first step to getting your good menopause back.

In 1999, Tina Mattern was diagnosed with breast cancer and faced a terrifying choice of conventional treatments. Instead, she discovered the work of Dr. David Zava and ZRT Laboratory, and chose a path of natural hormone balancing, saliva testing and lifestyle change. This is her story — and her happy ending.

Explore why many men on topical testosterone replacement therapy may be unintentionally over-dosed due to outdated serum testing methods and misunderstood dosing principles. Learn how saliva and dried blood spot testing better reflect bioavailable testosterone delivered to tissues, why physiological dosing matters, and how excessive testosterone may suppress natural hormone production, reduce receptor sensitivity, and negatively affect long-term symptom management and hormonal balance.