Also known as: echinacea purpurea, purple coneflower, echinacea angustifolia
Latest evidence update: 2025-02-28
Strongest in Study quality (74). Held back by Replication (47).
Solid mix of RCTs with some methodological gaps.
Some independent replication, statistical precision uneven.
Thousands of participants across the literature.
Mostly aligned, with some divergence.
Healthy mix of recent and established research.
Areas where research points to a consistent direction of effect. The strength of evidence is graded; the size of the effect is not quantified.
Recommended: 300-600mg standardized extract, 3-4x/day at symptom onset
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