Here's why:
* Lifting the Hair's Natural Color: Platinum hair requires a significant lifting of the hair's natural pigment. Hydrogen peroxide is a key ingredient in hair lighteners and dyes that perform this lifting action. It opens the hair cuticle and breaks down the melanin (the pigment that gives hair its color).
* Developing the Dye: Hydrogen peroxide also acts as a developer for the dye molecules. It helps them to penetrate the hair shaft and bind to the hair, creating the desired platinum shade.
Therefore, if you're using a product to achieve platinum hair, it's highly likely to contain hydrogen peroxide. The strength of the peroxide (measured in volumes or percentages) will vary depending on the product and how much lifting is required.