One of the most commonly used herbs in the botanical toolbox is Vitex agnus-castus, also known as chaste tree berry. During the Middle Ages the dried berries were used in monasteries as a peppery condiment that was said to help suppress libido. Additionally, in the mid-1900s, Vitex was often given to women for “sexual irritability,” nervousness and melancholia. Perhaps for these reasons the herb…

Tags: Hormone Balance, PMS and PMDD, Menstrual Cycle Mapping, Menopause, Mental Health


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Vitex Agnus-Castus – Botanical Support for Female Hormone Imbalance

Menopause can be a confusing time for many women and their families, and as a society we tend to steer away from having open, honest conversations about this very important transition in a woman’s life. At ZRT, we aim to change that and equip all woman with the tools and resources necessary to maintain optimal health during their menopause transition and after. In this post, ZRT’s Clinical…

Tags: Menopause, Progesterone, Estrogen, Depression, Anxiety, Weight Management, Sleep, Thyroid Health


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Menopause: Your Most Common Questions Answered

The Compounding Pharmacy industry has certainly taken huge strides in providing devices that allow for easy and accurate delivery of creams, gels and ointments. This has been especially appreciated in the field of hormone replacement, where accurate dosing is critical. Over the years we have gone from jars and measuring spoons to syringes for hormone cream dispensing. Fortunately, now there are…

Tags: Hormone Replacement Therapy, Estrogen, Testosterone, Hormone Balance, Saliva Testing


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A Practical Guide to New Developments in Dispensing of Topical and Vaginal Hormone Preparations

Growing up, I never thought of myself as a runner, or really a good athlete in general. I played every sport possible as a kid growing up in Minnesota, but I was never great, which is why I never played high school sports (other than trying cross country skiing the one year we didn’t end up having any snow…). As an adult, I started playing team sports again and eventually was convinced to run a…

Tags: Athletes, Testosterone, Estrogen, Progesterone, Thyroid Health, Vitamin D, Neurotransmitters


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How Your Hormones Affect Athletic Performance and Why You Need to Start Testing

In 2002 several large-scale clinical studies were published on the risks of breast cancer in postmenopausal women using conventional FDA-approved hormone therapy. These were the Women’s Health Initiative (WHI) and Million Women’s studies of women using FDA-approved estrogens and progestogens in the United States and Great Britain, respectively. Both studies came to the same conclusion – that…

Tags: Progesterone, Estrogen, Menopause, Breast Cancer, Brain Health


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Topical Progesterone, Not Synthetic Progestins or Oral Progesterone, Should Be Considered as a Companion for Estradiol Replacement Therapy

2019 saw a varied collection of webinars for our health care providers, ranging from practical hormone therapy dosing to the complex biochemistry of the endocannabinoid system. This year we saw an abundance of support from attendees – sharing excitement for topics, actively engaging by asking excellent questions during and after the webinar, and even requesting…

Tags: ZRT Laboratory, Hormone Testing, Hormone Balance


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Looking Back on 2019: Most Popular Webinars

As we ring in the new year, we are reminded of all the accomplishments that came with 2019. We launched our new serum testing, followed by our launch of a new LCMS Saliva Steroid Profile. We also welcomed with open arms, our newest clinical consultant, Beth Baldwin, and surpassed 10 million tests completed worldwide! Wow, what a year! Before we close the door on 2019, let’s take a moment to look…

Tags: ZRT Laboratory, Hormone Testing, Hormone Balance


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Looking Back on 2019: Most Popular Patient Blog Posts

As we bring on the new decade full of ambition and ready for what is next to come, we take a look back at all that happened in 2019 here at ZRT. We launched serum testing and an LCMS Saliva Steroid profile, we welcomed a wonderfully talented new clinical consultant, Beth Baldwin, and exceeded 10 million tests completed worldwide! As eventful as this last year was, it didn’t slow us down from…

Tags: ZRT Laboratory, Hormone Testing, Hormone Balance


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Looking Back on 2019: Most Popular Provider Blog Posts

ZRT’s Laboratory Developed Tests - How We Bring Innovative Dried Sample Testing to MarketZRT Laboratory has been working with dried samples for over 15 years, and the number of tests we offer using dried urine and blood spot make us the world expert on dried sample validation and commercialization. ZRT Laboratory specializes in dried sample types because of their superior stability, ease of…

Tags: Dried Urine Testing, Blood Spot Testing, Hormone Testing, ZRT Laboratory


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ZRT’s Laboratory Developed Tests - How We Bring Innovative Dried Sample Testing to Market

Having just entered my forties, my radar’s perked for solid information coming out of the research community on the perimenopausal transition. What can I do to make this 10 or so years of transition useful and even helpful to the future postmenopausal me? As women, we’re no strangers to functioning in some level of consistent discomfort – whether cycle-related, birth control related, pregnancy or…

Tags: Menopause, Cardiovascular Disease, Estrogen, Progesterone, Hormone Replacement Therapy, Metabolic Health, Cortisol


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A Perimenopausal Game Plan

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