Which product is the most common neutralizer used in hair treatments?

Hydrogen peroxide is the most common neutralizer used in hair treatments, particularly in the process of hair coloring and perming. It functions effectively to halt the chemical process initiated by the oxidizing agents in hair treatments. When used as a neutralizer, hydrogen peroxide helps to stop the action of harsh chemicals, allowing the hair to return to a more stable state after treatments like bleaching or perming.

Its role in hair treatments is crucial as it not only neutralizes unwanted chemicals but also contributes to the lightening or altering of hair color through oxidation. This makes it an invaluable product in salons where effective and safe chemical treatments are prioritized.

Other options, while they may have different applications in various contexts, are not recognized as standard neutralizers in hair treatments. Sodium bicarbonate, for example, is often utilized as a cleansing agent or pH balancer, but does not have the same neutralizing properties as hydrogen peroxide. Ammonium sulfate and calcium carbonate serve other functions, such as acting as buffering agents or additives, and are not commonly included in the neutralization process during hair treatments.