I think this article is relevant to this thread. I want one of these WaveCel helmets. There are links in the articles to safety ratings, whitepapers, and whatnot.
Bontrager, a Trek-owned brand, says the WaveCel helmets are up to 48 times as effective as standard foam helmets in preventing concussions from common cycling accidents (
read the WaveCel whitepaper here).
https://www.businessinsider.com/trek...cussion-2019-3