Section 06 PRODUCTS OF THE CHEMICAL OR ALLIED INDUSTRIES 33 ESSENTIAL OILS AND RESINOIDS; PERFUMERY, COSMETIC OR TOILET PREPARA-TIONS 33 05 PREPARATIONS FOR USE ON THE HAIR. 33 05 20 PREPARATIONS FOR PERMANENT WAVING OR STRAIGHTENING Commodity Code Description 33 05 20 00 PREPARATIONS FOR PERMANENT WAVING OR STRAIGHTENING