424 / | HD | DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS |
70.1 | DF | LIVE HAIR OR SCALP TREATING COMPOSITIONS (NONTHERAPEUTIC) {12} |
70.2 | DF | .~ Permanent waving or straightening {2} |
70.5 | .~.~ Sulfur compound containing {1} | |
70.51 | DF | .~.~.~> Cysteine, cysteamine, or derivatives thereof |