Stress Management
Evidence-based stress management guide — ashwagandha, rhodiola, L-theanine and cortisol reduction strategies backed by RCTs.
Explore
What the Research Says
Frequently Asked Questions
What are the best supplements for cortisol reduction?
Strongest evidence: Ashwagandha KSM-66 (27.9% cortisol reduction in RCT), Phosphatidylserine (blunts exercise cortisol), L-theanine (attenuates acute cortisol response), Rhodiola rosea (reduces stress-fatigue). Correct magnesium deficiency first — low magnesium is correlated with elevated cortisol.
Is Rhodiola or Ashwagandha better for stress?
Different use cases. Ashwagandha works via HPA axis modulation — better for chronic stress, sleep, and cortisol. Effects build over 8–12 weeks. Rhodiola is more stimulating and faster-acting (1–2 weeks) — better for acute stress-fatigue and performance under pressure. Many practitioners use both: ashwagandha AM/PM, Rhodiola AM only.
Does L-theanine work without caffeine?
Yes. 200mg L-theanine alone increases alpha brain wave activity and reduces resting heart rate and cortisol response to acute stressors within 30–60 minutes. Paired with caffeine it smooths stimulant effects; alone it provides subtle calming without drowsiness.
How can I test if my cortisol is elevated?
Salivary cortisol tests (e.g., DUTCH test) measure the diurnal cortisol curve across 4–6 time points — most informative. Serum cortisol (AM blood draw) is accessible via GP. Supplement protocols should be tailored to your specific cortisol pattern, not assumed to be the same for everyone.
Can adaptogens be taken long-term?
Most adaptogens are studied for 8–12 weeks with good safety profiles. Cycling is precautionary (8 weeks on, 2–4 off). Ashwagandha appears safe up to 6 months in studies. Rhodiola is often cycled (4–6 weeks on, 1–2 off) due to anecdotal reports of tolerance. Monitor your response and take periodic breaks.