This test measures your natural melatonin rhythm using saliva. Melatonin is essential for restful sleep, proper immune function, mood, and healthy aging.
Levels vary predictably over the day with the highest levels produced at night.
The SRP utilizes 3 melatonin saliva samples taken at 3 specific times over 24 hours to evaluate your melatonin rhythm. Click here for complete collection instructions. Women's Health America. This page is maintained by the Webmaster.