What is the term for a lightener that can be used directly on the scalp?

The term "on the scalp lightener" refers to a specific type of hair lightener that is formulated for safe application directly on the scalp. This type of lightener is typically designed to be mild enough to minimize irritation while being effective in lightening the hair color.

Using an on the scalp lightener is essential for applications where the desired result is to lighten hair at the roots or on the scalp area, especially during processes like touch-ups or when lifting the natural hair base. This lightener often contains ingredients that not only lighten the hair but also nourish and protect the scalp and hair during the chemical process.

In contrast, other types of lighteners may not be suitable for direct application on the scalp due to their stronger formulations, which could lead to potential irritation or damage. For example, off the scalp lighteners are intended for use away from the scalp, typically in creative coloring techniques such as foiling.

Therefore, understanding the specific use and formulation of on the scalp lighteners is crucial for a professional hair colorist, ensuring client safety while achieving the desired lift and color results.