Medicinal Ingredients (per capsule): N-Acetyl-L-Cysteine 150 mg, Quercetin (from Dimorphandra mollis seed) 125 mg, Perilla (Perilla frutescens) Seed Extract (5:1) 75 mg (375 mg dried equivalent), Astragalus (Astragalus membranaceus) Root Extract (16:1) 80 mg (1280 mg dried equivalent). Non-Medicinal Ingredients: Vegetarian capsule (hypromellose, water), hypoallergenic plant cellulose