Also known as: Eschscholzia californica, Golden poppy
Mild sedative and anxiolytic herb in the poppy family. Distinct from opium poppy — no opioid alkaloids.
Safe for short-term ongoing use; long-term safety not well studied
Avoid in pregnancy
We haven’t curated landmark studies for California Poppyyet — one-click into the primary literature here. PubMed (RCTs) is usually the highest-signal starting point.
Limited human studies. Traditional use for sleep and mild anxiety; mechanism inferred from in vitro work.
Avoid — uterine-stimulating activity reported
No significant concerns at typical doses
Other ingredients in the Sleep category.
Formulate Research Team. (2026, September). California Poppy — Evidence-Based Supplement Guide. Formulate Supplement Encyclopedia. https://app.formulate-health.app/learning/supplements/california-poppy
Educational content based on published research and our scoring methodology. Not medical advice — consult a qualified healthcare provider before starting, stopping, or changing supplements, especially if you take medications, are pregnant, or have a medical condition.