Grapefruit Extract provides a highly concentrated form of grapefruit essential oil for gut health and microbial balance Effective - Grapefruit oil may contribute to gut microbial balance & overall gut health, thanks to its broad-spectrum antimicrobial properties Optimum support - Provides 450mg of grapefruit oil extract taken from the peel of grapefruit Health properties - Grapefruit is a rich source of proanthocyanidins, antioxidant molecules that have approximately 50 times more free radical scavenging ability than vitamins C and E