my bathroom says it is a 10% solution with only 1% available iodine. Not for internal use. From Wikipedia Povidone-iodine (PVP-I) is a stable chemical complex of polyvinylpyrrolidone (povidone, PVP) and elemental iodine . It contains from 9.0% to 12.0% available iodine, calculated on a dry basis [1] . This unique