Medicinal ingredients (per scoop [approximately 5.4 g]): L-Arginine (from L-arginine alpha ketoglutarate) 2050 mg, L-Citrulline (from citrulline malate) 715 mg, Vitamin C (as ascorbic acid) 200 mg. Non-medicinal ingredients: Xylitol, stevia leaf extract, monk fruit extract, natural lemon and lime flavours.