← All Ingredients Immune

Echinacea

Also known as: echinacea purpurea, purple coneflower

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Effective Dosage

300-500mg 3x/day during illness

✓ What the Science Says

May slightly reduce cold duration. Mixed evidence.

✗ What It Doesn't Do

NOT proven to prevent colds. Effects are small if any.

Evidence-Based Benefits

May slightly reduce cold duration. Mixed evidence.

Weak Evidence

Effective at: 300-500mg 3x/day during illness

Source: NIH ODS, Cochrane

Absorption & Bioavailability

Unknown

Red Flags to Watch For

🚩 Prevention claims
🚩 Dramatic immune boosting claims

Research Sources

NIH ODS, Cochrane

This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-02-04