Why should cream be applied under the eye when tinting eyelashes?

Applying cream under the eye when tinting eyelashes is essential because it prevents the tint from bleeding onto the skin. This barrier helps to keep the dye contained to the eyelashes, ensuring a clean application without unwanted staining of the surrounding skin area. By creating this protective layer, the potential for irritation and uneven coloring is reduced, leading to a more polished and professional result.

The other options may imply benefits of the cream but do not align with the primary purpose during the tinting process. Enhancing the tinting process, helping to set the color, or providing a moisturizing effect might be secondary advantages in a broader context but are not the main reason for its application in this specific scenario. The main goal when applying the cream is to safeguard the skin beneath the eyes from potential discoloration caused by the tint.