Cortisol (Mass Concentration) in Saliva
This test measures the amount of cortisol, a stress hormone, found in your saliva. It helps assess how your body responds to stress over time.
["Salivary cortisol can reveal long-term stress levels that blood tests may miss."]
Key facts at a glance
- LOINC
- 58666-9
- Short code
- Cortis 4 AM specimen Sal-mCnc
- Synonyms
- Cortis 4 AM specimen Sal-mCnc
- Category
- hormone
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
Why This Test Is Done
Your healthcare provider may order this test to evaluate chronic stress, adrenal gland function, or to monitor conditions like Cushing’s syndrome or Addison’s disease. It can also help diagnose or manage conditions affecting cortisol levels, such as depression or anxiety.
A small saliva sample is collected, typically in the morning when cortisol levels are naturally highest. The sample is then analyzed to determine cortisol concentration.
No special preparation is needed, but you may be advised to avoid caffeine or smoking for a few hours before collection to ensure accurate results. Avoid brushing your teeth right before sampling to prevent interference.
Results are not provided with specific reference ranges, as they depend on clinical context. Elevated levels may indicate chronic stress or adrenal dysfunction, while very low levels could suggest hormonal imbalances.
Elevated cortisol levels might suggest conditions like Cushing’s syndrome or excessive stress responses, while persistently low levels could indicate adrenal insufficiency or other hormonal disorders.
Common Conditions Monitored
This test is often used to monitor stress-related conditions, such as chronic stress, anxiety, or depression. It may also be part of a broader evaluation for hormonal disorders or adrenal dysfunction.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Salivary Cortisol
Frequently asked questions
How often should I get this test?
What are typical reference ranges for this test?
Can I take medications that affect cortisol levels before this test?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy