IFRA Categories Maximum Level of use (%) IFRA Category 1 Not approved IFRA Category 2 Not limited IFRA Category 3 Not limited IFRA Category 4 Not limited IFRA Category 5A Not limited IFRA Category 5B Not limited IFRA Category 5C Not limited IFRA Category 5D Not limited IFRA Category 6 Not approved IFRA Category 7A Not limited IFRA Category 7B Not limited IFRA Category 8 Not limited IFRA Category 9 Not limited IFRA Category 10A Not limited IFRA Category 10B Not limited IFRA Category 11A Not limited IFRA Category 11B Not limited IFRA Category 12 Not limited
