Echinacea (Echinacea purpurea)
Immunity & respiratoryFunction & benefits
A traditional herb used for short periods to support the body's natural defences in the cold season; meta-analyses suggest a possible benefit in preventing colds and shortening them, with results varying between products.
Dosage & how to use
| Recommended dose | 300–500 mg of standardised extract 3 times a day at the first signs of a cold, for 5–7 days, then stop |
| Best time to take | With meals |
| Frequency | 3 times daily |
Best forms to choose
Standardised juice or extract of the aerial parts of Echinacea purpurea, in capsules or drops.
Important warnings
Do not use it continuously for more than 10 days
Not for people allergic to the daisy family, or with autoimmune or progressive systemic diseases (such as tuberculosis or HIV)
Not recommended for children under 12
Drug interactions
It may interfere with immunosuppressants and may affect CYP450 enzymes, changing the levels of some medicines (such as midazolam and caffeine).
Related supplements
- Cold-Pressed Black Cumin Seed OilImmunity & respiratory
- Black Elderberry Extract (Sambucus nigra)Immunity & respiratory
- Daily MultivitaminsGeneral health & immunity
- Omega-3 Fish OilGeneral & heart health
Scientific references
- Shah SA et al. Lancet Infect Dis 2007 (meta-analysis) — PMID: 17597571
- Karsch-Völk M et al. Cochrane Database Syst Rev 2014 — PMID: 24554461
Content last updated: 17 October 2026 · Based on published sources and research (EFSA / NIH / PubMed)
⚖️ Medical disclaimer: The information and data provided here are for health education and nutritional guidance only. They are not a medical diagnosis and never replace a direct consultation with your doctor or pharmacist. Always consult your doctor before starting any supplement, especially during pregnancy or breastfeeding or when taking long-term medication.