Replying to Best helmet for Concussion-proofing my head.

I know that helmets these days are designed to stop concussions, but more intended to prevent catastrophic injury. But ive gotten three concussions all with Giro mx helmet and im sick of them. Most skiing helmets have the hard inner foam that doesnt do jack shit for concussions bc there is no give to it and your brain will still smack your skull. I'm thinking a helmet with a softer liner that will cushion my head when i slam it into the ground.. Any help at all is Appreciated