Why should oil-based products be avoided post-application?

Oil-based products should be avoided after eyelash extension application because they can break down the adhesive used to attach the extensions to the natural lashes. The adhesive is specifically formulated to bond with the natural hair, and oil can interfere with this bond, leading to a weakened attachment. As a result, this can cause the extensions to loosen or fall off prematurely, impacting the overall longevity of the eyelash extensions and the appearance of the client's eyes.

In contrast, while some options mention skin irritation, effects on color, or enhanced longevity, these factors do not directly relate to the primary concern post-application, which is the integrity of the adhesive bond. Therefore, ensuring that clients are aware of the importance of avoiding oil-based products is crucial for maintaining the desired results from their eyelash extensions.