Planetary Herbals Full Spectrum Elderberry Extract includes concentrates of both the berry (standardized to 30% anthocyanins), and the flower (standardized to 5% bioflavonoids). These are blended with a black elder berry and flower tea decoction, making Full Spectrum Elderberry Extract a complete elder supplement for immune system support. Lifestyle Recommendations: To support the immune system, eat well, get plenty of rest and exercise regularly. Avoid the excessive consumption of cold and raw foods during the winter. Other Planetary Herbals products to support the immune system include: Astagalus Jade Screen, Full Spectrum Echinacea Extract, Yin Chiao Classic, Yin Chiao-Echinacea Complex, and Old Indian Wild Cherry Bark Syrup.