Superior Travel Supplement | Jet... vs Douglas Laboratories® - Berberin...

My spouse flies internationally a fair amount. Didn't feel any fatigue from a 7. Hour flight. No tires, no blahs, no hangover.

Berberine is one of the most powerful supplements out there. Also is a pretty strong antifungal (helps fight mold, for example) hard to find reputable brands in the supplement world.