DUTCH Cortisol Awakening Response (CAR)

The cortisol awakening response is a distinct part of the circadian cortisol rhythm that measures HPA axis reactivity. Cortisol levels rise to their highest level around 30 minutes after waking and decline throughout the day. This test uses saliva to measure levels 5 times throughout the day and provide practitioners with a graphic view of that cortisol awakening response curve.

SalivaAt-home kit

Get a free sample report

View sample report

A clear, color-coded report your practitioner uses to build your plan. Every marker is grouped, flagged, and plotted against reference ranges.

Every marker grouped by health area

Color-coded flags with reference ranges on every marker

Plain-language explanation of what each result means

Reviewed with you by the practitioner who curated this store

FAQ

Answers to your questions about lab testing and services.

How long does it take to get my results back?

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The Rhea Apothecary | Supplements for Perimenopause & Beyond

The Rhea Apothecary Thoughtful support for your next era. Welcome to the supplement companion to Rhea Teachings, curated by Dr. Michele Burklund and Dr. Kristi Harter. Our approach begins with the foundations: nourishing food, restorative sleep, movement, and care for your nervous system. Thoughtfully chosen supplements can build on that foundation when they serve a clear purpose. Explore our collections alongside your Rhea teachings, with your individual needs in mind. You don’t need everything. You deserve to understand what belongs in your routine, and why.

Rhea Teachings | Perimenopause Program