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Specialized to assess issues with fertility, weight, sleep, adrenal stress and cardio health.

Focused Health Tests

ZRT Laboratory Cortisol Awakening Response - CAR The test includes 6 collections of cortisol throughout the day. To capture this response, three – ra.. Product #: CAR Regular price: $195.00 $195.00

Cortisol Awakening Response - CAR

The Cortisol Awakening Response – also called CAR – reveals more detailed clues that help in assessing adrenal hormone function. This testing is often useful for cases of PTSD, major depression, chronic fatigue syndrome and other severe stress conditions.

Cortisol Awakening Response Sample Collection

6-Tube Collection: Six cortisol collections in 24 hours is the most common method for assessing CAR. Start saliva collection within five minutes of waking for the day, followed by a second sample at 30 minutes, and a third sample at 60 minutes. The rest of the diurnal rhythm can be assessed at the normal time intervals – noon, evening and night. Click here for more collection instructions.

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Membe Price: $195

Also known by ZRT Lab Product Name: Cortisol Awakening Response - CAR

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Diurnal 4X Cortisol Yes (6 tests)
Sample Type
Dried Urine Yes