To clean their eyelash extensions, which of the following should clients use?

Clients should use eyelash cleansers to clean their eyelash extensions because these products are specifically formulated to maintain the integrity and longevity of the extensions while effectively removing debris, oils, and makeup. Unlike regular shampoo or facial cleansers, which may contain harsh ingredients that could weaken the bonds of the extensions, eyelash cleansers are designed to be gentle yet effective. This ensures that cleansing doesn't lead to premature loss or damage.

Using dog shampoo or regular shampoo is also inappropriate, as these products are not intended for the delicate area around the eyes and may contain ingredients that are too harsh, potentially causing irritation or allergic reactions. Eyelash cleansers provide a tailored solution that supports both hygiene and the longevity of the eyelash extensions.