From Manufacturer''s Label:Everyday stressors cause stress hormones in your body to become elevated. Sleep Tonight! helps activate your body’s relaxation response - both night and day.**Sleep Tonight! is formulated to balance stress hormones.** It is a gentle formula, containing stress-reducing botanicals, plus phosphatidylserine, which helps support a healthy response to mental stress.**Contains 28 tablets.Manufactured by: Enzymatic Therapy, LLC.