Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Echinacea purpurea has a long history of traditional use among Native American tribes to treat various infections, particularly those involving the respiratory tract. Its use for viral infections, and especially for the common cold, has been the subject of scientific investigation since the late 20th century. Laboratory studies suggest that extracts of Echinacea purpurea can stimulate immune function, potentially increasing the activity of macrophages and the production of cytokines, which may help the body resist viral infections. Some randomized controlled trials (RCTs) and meta-analyses indicate a small reduction in the incidence or duration of upper respiratory tract infections, including the common cold, when Echinacea is used as a preventive or early treatment. However, the quality and consistency of evidence are limited by differences in Echinacea species, preparation methods, dosages, and study designs. Major medical reviews, such as those from the Cochrane Collaboration, conclude that while there may be a modest benefit, the overall evidence remains inconclusive, and routine use cannot be firmly recommended. Thus, while Echinacea purpurea is widely marketed for immune support and viral infections, scientific validation is modest, and its effectiveness is still debated in the medical community.

More about echinacea purpurea
More about Infection (viral)

Other ingredients used for Infection (viral)

Other health conditions supported by echinacea purpurea

Products containing echinacea purpurea

Metagenics Echinacea Synergy
Integrative Therapeutics EHB
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Designs For Health Immunitone Plus™
Thorne Phytogen