How to Identify High-Quality Echinacea Extract Powder: A Buyer’s Checklist
Identifying high-quality echinacea extract powder requires checking specific marker compounds, botanical authenticity, and physical attributes. Pure extract appears as a fine, greenish-brown to brown powder with a characteristic herbal aroma and slightly numbing taste. Buyers should verify cichoric acid and polyphenol levels using HPLC and UV testing methods. Look for Echinacea purpurea or...