"Adrenal Chill contains two very important clinically studied stress reducing ingredients: L-theanine and KSM-66® or ashwagandha. L-theanine is an amino acid commonly found in green and black tea that encourages feelings of relaxation due to its modulation of the neurotrasmitter GABA. Studies show that the effects of L-theanine are felt within 30 minutes of taking it. KSM-66® is the world’s best root-only ashwagandha used to reduce stress. This formula features the highest potency extract possible of ashwagandha to ensure the peaceful results.