KA-EX contains 100mg of phosphatidylserine—a compound clinically proven to signal your body to lower cortisol production. Combined with L-tryptophan for sleep support and amino acids for recovery, it addresses cortisol from multiple angles. Three independent studies confirm a 36% faster return to normal cortisol levels within 48 hours.

Absolutely—and you should. Cortisol elevation from training doesn't disappear immediately. Taking KA-EX on rest days or during high-stress work periods helps maintain lower cortisol levels, which means better energy, mood, and readiness for your next session.

Yes. KA-EX is Informed Sport certified, meaning every batch is tested for banned substances. It's used by Olympic athletes, professional soccer teams, and F1 drivers who undergo strict anti-doping testing.