Made from sustainably wild-caught sardines, anchovies, herring, and mackerel, our Fish Oil is formulated with the highest concentration of EPA & DHA Omega-3 fatty acids, which are essential to develop and function optimally in every state of a pet's life. Every batch is third-party tested with the highest standards by the EUROFINS testing program. Molecularly distilled to remove all harmful toxins and heavy metals, our human-grade Fish Oil exceeds all requirements set by US and European Pharmacopoeia standards.