Product Name: Schwarzkopf Professional NATURAL STYLING hydrowave NEUTRALISER (German: NEUTRALISIER) Classification: Fixing Lotion Care+ / Neutraliser Primary Function: Used as a neutraliser/fixer in the second stage of hair treatment to create permanent waves. Size: 1000 ml Key Active Ingredients (as listed on the label): Aqua (Water), Hydrogen Peroxide, and Phosphoric Acid, along with fragrance and conditioning agents.