Source Naturals ArcticPure DHA Liquid, 1 Fluid Ounce

What the brand says

The omega-3 fatty acid DHA protects the neurons and neurological functions of the brain, supporting cognition, memory and mood. DHA is the most prevalent fatty acid in the brain, which is 60% fat by dry weight. ArcticPure(R) uses fish oils from the cleanest sources on Earth. A series of advanced distillation processes extracts and concentrates the beneficial fatty acids from the raw oil, resulting in a product of outstanding purity. The state-of-the art bottling process is done in an oxygen-free environment, insuring an oil that is not oxidized and is as pure as any oil available worldwide. The lemon flavor gives ArcticPure(R) DHA a taste pleasing to both adults and children.