ProEPA Lemon is a supplement that is made by Nordic Naturals. This brand proudly tests all of its fish oil products for any traces of contamination that may include heavy metals such as mercury. iron and lead. All Nordic Naturals fish oil products are purified and concentrated to eliminate any impurities. ProEPA Lemon Flavor 120 gels deliver DHA and EPA fatty acids that support multiple systems of the body including the heart. The oil from these dietary supplements is extracted from deep sea fish such as sardines and anchovies. ProEPA Lemon Flavor 120 gels also include Vitamin E. an essential fat soluble nutrient that is combined well with natural fish oil ingredients.