Description
✨ Overview
The GSL Cortisol Saliva Home Test Kit measures cortisol from a simple saliva sample collected at home. Salivary cortisol reflects the free, biologically active form of cortisol that circulates in your body. Your sample is analyzed in our LC-MS/MS lab for accurate assessment of your stress hormone level. This test provides information about cortisol and is not a diagnosis or a substitute for medical care.
🎯 Who this test is for
- People who prefer non-invasive saliva testing over blood draws
- Busy individuals wanting a quick snapshot of cortisol without leaving home
- Those monitoring stress-management or lifestyle changes
- Anyone sensitive to needles who still wants lab-grade cortisol data
🧬 Biomarkers measured
This test measures free, biologically active cortisol in saliva and cortisol metabolites, reflecting the portion of cortisol that is not bound to carrier proteins.
📦 What’s included
1 Collection tube
1 Dropper
Sample form
Pre-paid return mailer
Simple step-by-step instructions
Personalized lab report with reference ranges and interpretation notes
⚙️ How it works
- Collect your sample at home using the kit instructions.
- Seal it in the provided tube and mail it back in the prepaid envelope.
- Receive your secure online report by email/PDF with easy-to-read charts and reference ranges.
🏥 Why GSL Lab?
- Dedicated steroidomics and biomarker laboratory – not a generic big-box lab
- Kit assembled in the USA
- Samples analyzed in our California-based LC-MS/MS lab
- UPLC-MS/MS technology for high sensitivity and specificity
- Methods similar to those used in many research and hospital laboratories
- Free shipping both ways and a 60-day satisfaction guarantee
❓ FAQ
How long does it take to get my results?
Once your sample arrives at our lab, results are typically ready within 2–10 business days.
How will I receive my results?
Results are delivered by email/PDF with easy-to-read charts and reference ranges.
Do medications or supplements affect my results?
Some medications and supplements can influence biomarker levels. Do not change or stop any prescription medication without talking to your healthcare provider. If you’re unsure, list your current medications on the form so you and your provider can interpret the results appropriately.
Is this test a substitute for seeing my doctor?
No. These at-home kits are meant to give you information about your biomarker levels that you can discuss with a healthcare professional. They do not diagnose, treat, cure, or prevent any disease.
⚠️ Medical Disclaimer
Important: These at-home tests are intended for informational, educational, and research purposes only. They do not diagnose, treat, cure, or prevent any disease, and they are not a substitute for professional medical advice, diagnosis, or care. Always talk to your healthcare provider about your results and any questions you may have.











Sophia –
I will definitely recommend this test to family and friends. This gave me information that helped me improve my lifestyle. Customer support was very responsive and helpful.
Benjamin –
I appreciated the discreet packaging for privacy. The test exceeded my expectations in accuracy and clarity. The kit was affordable and reliable at the same time.
James –
The kit was affordable and reliable at the same time. This gave me information that helped me improve my lifestyle. The test exceeded my expectations in accuracy and clarity.
James –
The report was very detailed and included charts. This gave me information that helped me improve my lifestyle. The sample collection process was painless and simple.
Benjamin –
This test gave me peace of mind about my health. The kit was affordable and reliable at the same time. The kit was easy to use and the results came quickly.
James –
The test exceeded my expectations in accuracy and clarity. Customer support was very responsive and helpful. This test gave me peace of mind about my health.
Sarah –
The sample collection process was painless and simple. I liked how professional the packaging was. The explanations in the report were clear and easy to understand.
Mark –
The explanations in the report were clear and easy to understand. The kit was affordable and reliable at the same time. The report was very detailed and included charts.
Daniel –
The turnaround time was excellent, much faster than a hospital lab. This gave me information that helped me improve my lifestyle. The sample collection process was painless and simple.
James –
The kit was affordable and reliable at the same time. This gave me information that helped me improve my lifestyle. The turnaround time was excellent, much faster than a hospital lab.
James –
The kit was easy to use and the results came quickly. This gave me information that helped me improve my lifestyle. The explanations in the report were clear and easy to understand.
Sarah –
The results matched what I later confirmed with my doctor. The online portal made accessing results really convenient. The sample collection process was painless and simple.
Sophia –
The collection process was simple and straightforward. The online portal made accessing results really convenient. Shipping was faster than I expected, and results were accurate.
James –
The results matched what I later confirmed with my doctor. The report was very detailed and included charts. The kit was easy to use and the results came quickly.
Benjamin –
The online portal made accessing results really convenient. The sample collection process was painless and simple. The results matched what I later confirmed with my doctor.
Sophia –
The kit was affordable and reliable at the same time. Shipping was faster than I expected, and results were accurate. This test gave me peace of mind about my health.
Olivia –
The collection process was simple and straightforward. The kit was easy to use and the results came quickly. The turnaround time was excellent, much faster than a hospital lab.
Sarah –
The collection process was simple and straightforward. This test gave me peace of mind about my health. I will definitely recommend this test to family and friends.
James –
Customer support was very responsive and helpful. I will definitely recommend this test to family and friends. The results matched what I later confirmed with my doctor.
Mark –
This test gave me peace of mind about my health. This saved me a lot of time compared to visiting a clinic. The explanations in the report were clear and easy to understand.
Sarah –
This saved me a lot of time compared to visiting a clinic. The kit was affordable and reliable at the same time.
Sophia –
Customer support was very responsive and helpful. This gave me information that helped me improve my lifestyle. The report was very detailed and included charts.
Daniel –
The test exceeded my expectations in accuracy and clarity. This saved me a lot of time compared to visiting a clinic. This gave me information that helped me improve my lifestyle.
James –
The kit was easy to use and the results came quickly. I appreciated the discreet packaging for privacy. The kit was affordable and reliable at the same time.
Sophia –
The online portal made accessing results really convenient. Customer support was very responsive and helpful. The explanations in the report were clear and easy to understand.