What is the function of eyelash primer?

Eyelash primer serves a specific purpose in enhancing the overall effect of mascara application. Its primary function is to condition the lashes, providing them with nourishment and protection. This conditioning aspect helps to keep the lashes healthy and flexible, which can prevent breakage and promote better overall lash health.

In addition to conditioning, eyelash primer also acts to enhance the performance of mascara. By creating a smooth base for mascara application, it helps to improve adhesion, resulting in a more even and volumized appearance of the lashes after mascara is applied. This means that the mascara adheres better and can achieve a fuller look without clumping, ensuring that the lashes maintain their defined and separated appearance throughout the day.

The other choices, while related to lash aesthetics, do not accurately describe the primary role of eyelash primer. Darkening the lashes is typically achieved through the mascara itself, not primer. The curl of lashes can be influenced by curling tools or certain types of mascara, but primer does not create a curl. Similarly, thickening is generally a result of the mascara formula, rather than the primer, which primarily focuses on conditioning and preparing the lashes for subsequent makeup application.