Add-On Test
Cortisol Awakening Response Test - Morning Cortisol Dynamics

Cortisol Awakening Response

$275 CAD

Free shipping across Canada • Add-on test • Return shipping not included

This is an add-on test. For complete testing, consider the DUTCH™ Plus which includes CAR built-in.

The Cortisol Awakening Response (CAR) measures the distinct rise in cortisol that occurs within 30-60 minutes of waking. This add-on provides valuable HPA axis information that standard cortisol testing cannot capture.

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5 morning collections upon waking
Measures cortisol rise dynamics
HPA axis function indicator
Results in 10-15 business days

Understanding the Cortisol Awakening Response

The CAR is a distinct burst of cortisol that occurs in the first 30-60 minutes after waking. It's controlled by the hippocampus and provides unique insight into HPA axis function that cannot be obtained from standard daily cortisol patterns.

Collection Timeline

Wake
First collection immediately upon waking
+30 min
Second collection 30 minutes after waking
+60 min
Third collection 60 minutes after waking
Graph
Visual CAR curve showing your response

Conditions Associated with Abnormal CAR

Research has linked alterations in the Cortisol Awakening Response to various health conditions:

Depression

Elevated or blunted CAR associated with depressive disorders

PTSD

Often shows blunted awakening response patterns

Chronic Fatigue

Diminished CAR may indicate adrenal insufficiency

Burnout

Progressive flattening of the awakening response

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Complete Testing Options

DUTCH™ Plus

Complete hormone testing with CAR included. Our most comprehensive test.

$925 CAD

DUTCH™ Complete

Comprehensive hormone testing without CAR. Add CAR separately.

$699 CAD

DUTCH™ Adrenal

Focused cortisol testing without sex hormones.

$569 CAD