Today is the fourth installment in my ten-part natural immune booster series. It started when my curiosity was piqued while reading a list of ten natural immune boosters. I just had to research each one and share my findings with you. I’ve already covered coconut oil, oil of oregano, and manuka honey. Today, I’m sharing with you what I’ve learned about goldenseal, one of the most popular herbs sold in the United States. Goldenseal benefits!