What color classification is often used to tone pre-lightened hair?

Demi-permanent hair color is commonly used to tone pre-lightened hair because of its unique properties that allow for effective color adjustments without causing excessive damage. This type of color contains a lower concentration of ammonia or is ammonia-free, which helps to deposit color in the hair shaft while providing a more subtle, blended result.

Additionally, demi-permanent color typically contains a mixture of small and larger color molecules, allowing it to penetrate the hair cuticle effectively and create a more lasting result than semi-permanent options. It also fades gradually, which means it blends well with the existing hair color as it grows out.

This classification of color is particularly advantageous when working with pre-lightened hair, as it can enhance the tone or neutralize unwanted warmth, giving the stylist more versatility in achieving the desired shade while maintaining hair integrity.