Ive tried it. The cultured butter defiantly gives a brain boost. I do a lot of tutoring in math and physics. Sometimes my brain will get exhausted and thats bad news if I have more appointments. The cultured butter alone brings my brain back from the exhausted state and enables me to continue tutoring.
I'm into biohacking. Im doing posts on how to biohack longevity genes. Here are the links if you are interested.
https://steemit.com/health/@tombot/can-biohacking-double-lifespan-2-0
https://steemit.com/health/@tombot/can-biohacking-double-lifespan-3-0