Are they from fish or krill and are they the phospholipid ones to cross the blood brain barrier

They come from sustainably sourced wild Anchovy, Sardines, and Mackerel. Yes. The Omega-3s will definitely reach and accumulate in the brain. This is why DHA is the predominant Omega-3 in the brain. The Omega-3s in our Chewies are in easy-to-absorb Triglyceride-form. Concordix Technology delivers the Omega-3s in a pre-emulsified form. It is a patented method that combines Omegas, vitamins and minerals in emulsion format. This increases absorption, bioavailability and it’s great at masking the taste and odor of some nutrients. The Omega-3s will definitely reach and accumulate in the brain!