Which of the following is NOT an application for aniline derivative tints?

Aniline derivative tints are commonly used for hair coloring and can be employed to create highlights by lifting the hair color. These tints are chemically formulated to penetrate the hair shaft and provide long-lasting color results, making them effective for general coloring applications and highlighting techniques.

However, when it comes to using aniline derivatives on eyelashes, this practice is not appropriate. Eyelashes are highly sensitive, and the skin around the eyes is delicate. The use of these types of tints on eyelashes poses a risk for allergic reactions or irritation, which is why they are not recommended for that application. Eyelash tints specifically formulated for that purpose are usually made from gentler ingredients designed to ensure safety and minimize potential complications.

In contrast, applying aniline derivatives to hair, highlights, and eyebrows is common practice, as these areas can typically tolerate the chemical composition without significant adverse effects.