Eyelash extensions are typically applied on top of real eyelashes. Here's the reason:
Adhesion and Stability: Applying eyelash extensions on top of natural eyelashes allows for better adhesion. The adhesive can bond more effectively with the surface of the natural lashes, ensuring that the extensions stay in place for a longer period. If they were applied underneath, the natural curvature and movement of the eyelashes could cause the extensions to come loose more easily as the lashes move and blink.
Natural Look and Volume: Placing the extensions on top enables stylists to create a more natural and voluminous effect. They can layer the extensions in a way that mimics the natural growth pattern of the lashes, making it look as if the wearer has naturally long and thick lashes. This layering technique is easier to achieve when the extensions are on top, as it allows for better control and placement of each individual extension.
Eye Health and Comfort: Applying on top reduces the risk of irritating the eyelid and eye. If the extensions were underneath, they might rub against the eyelid, causing discomfort, redness, or even potential damage to the delicate skin of the eyelid. By being on top, the extensions are more likely to move with the natural lashes and stay away from direct contact with the eyelid, ensuring better comfort for the wearer.