STANDARDIZED EXTRACT: Feverfew is standardized to 0.5% - 0.7% perthenolide per capsule.
0.5% - 0.7% PARTHENOLIDE: Modern research indicates that feverfew's main bioactive compound is parthenolide.
HERBAL SUPPLEMENT: Feverfew is an herb that has been traditionally used by European herbalists for centuries.
GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation)
