Biogena QuattroFerrin 21 offers a comprehensive solution for optimal iron supplementation. With a focus on bioavailability and tolerability, this premium formulation combines four different forms of iron, each utilizing distinct absorption pathways. It includes plant-based iron from curry leaf and koji mushroom, alongside organic iron bisglycinate and high-quality iron pyrophosphate. The addition of natural vitamin C from camu-camu berries further enhances iron absorption for maximum effectiveness.