Tested for Optimum Purity Natural Fruit Flavor Dietary SupplementSolgar"s Chewable DHA Chewie-Gels are carefully manufactured with 100% pure fish oil derived from select fish species which undergo a proprietary cold-extraction and purification process. Every batch is QC tested for PCB"s, dioxins and heavy metals.Each serving provides 300 mg of ultra-pure, cold-extracted, highly stable DHA to support healthy brain function.