ZRT Laboratory

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United States
Beaverton, OR
ZRT Laboratory

Innovating hormone testing since 1998 | Promoting wellness to address menopause, infertility, weight management, adrenal fatigue, depression & more.

12/04/2025

Providers see this all the time: symptoms that do not match what serum levels report. Fatigue, mood changes, sleep issues, cycle changes, hot flashes, and anxiety can all continue even when serum values appear normal.

Saliva testing fills in those gaps and gives providers a clearer picture of what is actually happening in the body.

Here is why:
💧 Saliva measures the bioavailable or active portion of hormones. This is the part your cells can actually use.
🩸 Serum often reflects total hormone levels, which do not always match how a patient feels, especially when binding proteins are high.
🌿 Topical and transdermal hormones behave differently in the body. They often raise tissue levels without changing serum values. Dr. Zava explains this in the podcast and highlights why this matters for HRT monitoring.
🕔 Saliva collections make it easier to capture daily rhythm patterns, especially for cortisol.

Our founder, Dr. David Zava, discusses this and more with Dr. Kenna Stephenson on Episode 61 of the Women Talking Frankly podcast.
🎧 Listen now: https://bit.ly/4p0x6Pg

11/21/2025

When clinical presentations get complicated, testing brings clarity. 🔍

Dr. Pamela Smith reminds us that symptoms often look similar on the surface but the underlying cause matters. Accurate testing doesn’t just guide treatment, it protects patients.✨

▶️ Register and watch the webinar on demand here: https://bit.ly/43g4Srr

11/13/2025

“You’re not imagining it.”

So many women are told their symptoms are “just stress” or “all in their head.” But the truth is often hormonal and measurable.

In this episode of Women Talking Frankly, hosts Kyle McAvoy and Candace Burch talk with Dr. Kenna Stephenson and Dr. David Zava about the science of hormone restoration and the validation women feel when they finally see their results align with how they’ve been feeling all along.

🎧 Listen to the full conversation here: https://bit.ly/4p0x6Pg

11/06/2025

Join internationally recognized physician and author Dr. Pamela W. Smith for a deep dive into some of the most fascinating cases from nearly 50 years of clinical practice.

✅ Hormone-based case histories
✅ Why standard treatment plans don’t always work
✅ New therapeutic approaches for complex patients

Plus, stay for a live Q&A with Dr. Smith!
Register now for the November 20 webinar: 🔗https://bit.ly/42pgLLb

11/05/2025

From clinical conferences to provider-focused trainings, November is filled with opportunities to learn and connect. 🔬✨

Join us on Nov. 20 for Dr. Pam Smith’s webinar, Challenging Patient Cases, where she dives into advanced integrative approaches.

👉 Register here: https://bit.ly/43g4Srr

10/28/2025

Did you know the way the body processes estrogen can impact breast cancer risk? 🧫💖

Testing estrogen metabolites helps providers identify patterns that influence hormone balance and inflammation — and gives patients a clearer picture of their own breast health. 🌿

Learn more about estrogen metabolite testing here: https://bit.ly/4hB1fSI

10/23/2025

Chronic inflammation is more than just discomfort — it’s a driving factor behind nearly 25% of all cancers, including breast cancer. The good news? It’s modifiable. ✨

In her recent ZRT webinar How to Prevent Breast Cancer Before and After, Dr. Pamela Smith explained how inflammation affects hormone balance, detox pathways, and breast tissue health.

Simple lifestyle changes like supporting gut health, balancing hormones, and reducing toxin exposure can make a real difference.

🎥 Watch the full webinar here: https://bit.ly/42pgLLb

10/17/2025

Exercise is more than just a healthy habit. 🏃‍♀️ It is the most powerful lifestyle factor linked to reducing breast cancer risk and lowering the chance of recurrence.

In our most recent webinar, Dr. Pamela Smith explains why regular physical activity is so strongly connected to both prevention and long-term outcomes — and how you can apply this knowledge to patient care.

🎥 Watch the full webinar: https://bit.ly/42pgLLb

10/10/2025

Early detection is critical, but meaningful risk reduction starts upstream by understanding the factors that drive breast cancer risk. From hormone balance and chronic stress to environmental exposures and circadian health, modifiable influences can shape breast tissue biology long before disease develops.

ZRT’s at-home testing provides actionable data to help clinicians evaluate risk, guide prevention strategies, and support personalized care.

Learn more and register for our upcoming webinar:
Breast Cancer: Prevention Before and After with Pamela W. Smith, MD, MPH, MS
Tuesday, October 14 at 10 AM PT
Highlights include toxins, stress, hormonal risk factors, BHRT in patients with a history of breast cancer, immune system considerations, modifiable risks, and a live Q&A.
👉 Register: https://bit.ly/42pgLLb

10/03/2025

✨ Join us for an upcoming webinar with Pamela W. Smith, MD, MPH, MS! She is an internationally renowned practitioner and speaker who will share evidence-based strategies for preventing breast cancer before and after diagnosis.

You will learn about:
✔️ The impact of toxins, stress, and hormones
✔️ Modifiable and unchangeable risk factors
✔️ BHRT in patients with a history of breast cancer
✔️ The immune system’s role in recurrence

💬 Bring your questions. Dr. Smith will host a live Q&A at the end of the session.
📚 50 registrants will receive a free copy of her book, How to Prevent Breast Cancer: Before and After.
🎁 Don’t forget to enter our ZRT Saliva Kit Giveaway!

👉 Save your spot today: bit.ly/42pgLLb

10/02/2025

📅 ZRT is hitting the road this fall!
From national conferences to Dr. Pam Smith’s book tour, we’re excited to connect with providers across the country.

✨ Don’t miss Dr. Pam Smith’s exclusive webinar: How to Prevent Breast Cancer: Before and After — happening October 14th. Registration is now open! https://bit.ly/42pgLLb

09/26/2025

Nearly two-thirds of people living with Alzheimer’s are women. Research shows that midlife hormone changes — especially during perimenopause and menopause — play a powerful role in shaping long-term brain health.

🧠 Hormones and neurotransmitters work hand in hand to support mood, memory, and cognition. Understanding both offers valuable insight into overall health and wellbeing.

🔬 Learn more about hormones and neurotransmitter testing at zrtlab.com

Address

8605 SW Creekside Place
Beaverton, OR
97008

Telephone

+18666001636

Website

https://www.zrtlab.com/

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