In a healthy person cortisol in saliva and urine taper throughout the day, reaching a nadir before bed at night. Diurnal patterns of cortisol synthesis are similar when measured in saliva or urine.
Dried urine and salivary profiling for complete assessment of cortisol and cortisol metabolites - ScienceDirect
Animals, Free Full-Text
Circadian rhythm of saliva melatonin (A) and cortisol (B) of young
The Role of Cortisol and Melatonin in the Synchronization of the Circadian Rhythm
Cortisol Testing in Saliva, Blood & Urine - ZRT Laboratory
Religion, spirituality and diurnal rhythms of salivary cortisol and dehydroepiandrosterone in postmenopausal women - ScienceDirect
Stress Hormone at Home Saliva Test Kit - Diurnal 4 Point Cortisol + DHEA - Optimal Adrenals - Anxiety, Stress, Fatigue : : Health, Household and Personal Care
Typical standard curve of the cortisol LEIA
Do diurnal salivary cortisol curves carry meaningful information about the regulatory biology of the HPA axis in healthy humans? - ScienceDirect
Animals, Free Full-Text
Plasma, salivary and urinary cortisol levels following physiological and stress doses of hydrocortisone in normal volunteers, BMC Endocrine Disorders
Plasma, salivary and urinary cortisol levels following physiological and stress doses of hydrocortisone in normal volunteers, BMC Endocrine Disorders
How & Why Cortisol Fluctuates During The Day? - Lab Me