Phenibut
Supplement
A form of GABA that was previously available over-the-counter and was an amazing sleep supplement, but has since become legally impossible to acquire in the US due to safety concerns after misuse in Australia.
Mentioned in 3 videos
Videos Mentioning Phenibut

202 - Peter on nutrition, disease prevention, and more — looking back on the last 100 episodes
Peter Attia MD
A form of GABA that was previously available over-the-counter and was an amazing sleep supplement, but has since become legally impossible to acquire in the US due to safety concerns after misuse in Australia.

Dom D'Agostino Returns (Full Episode) | The Tim Ferriss Show (Podcast)
Tim Ferriss
A form of GABA with a phenyl ring that crosses the blood-brain barrier, providing calming effects and deep dreams, used occasionally for sleep or jet lag.

Dr. Dominic D'Agostino on Fasting, Ketosis, and The End of Cancer
Tim Ferriss
A substance that can be taken before bed for sleep, similar to GABA.