Best Peptides for Brain Fog, Memory & Focus Is anyone looking into peptides? I saw research on Cerebrolysin and MS. It's easy to get and it's cheap in my home country. Not available in the US but they did show DIHEXA is changing the conversation around cognitive optimization., This is one of PA Tammys many, many favorite peptides! And for good reason , Unlike options that can leave you feeling jittery or Cerebrolysin for Brain Repair LIVV Natural DIHEXA Research Capsules Peptide Tech Dihexa & Tesofensine Bundle Pack: Amazon.com: Industrial & Scientific