Consumers who already wear strip, individual, or magnetic false lashes and want one product that lines and glues at once instead of separate eyeliner and lash glue. It suits people with some experience applying false lashes, since the semi-wet timing takes a bit of practice, though it's also used by lash professionals.

Its main advantage over a separate eyeliner-plus-glue routine is fewer products at the lash line: one formula lines and holds strip, individual, or magnetic lashes, and being latex-free makes it a reasonable option for people who react to standard latex-based lash adhesives.

Apply on clean, dry eyelids. Brush on two coats of the adhesive eyeliner along the upper lash line, then place lashes onto the liner while it's still semi-wet and press gently to secure. If lashes need repositioning after the liner has dried, peel them off, clean away the residue, and apply a fresh coat before reapplying. To remove lash strips, gently peel from the outer corner; remove the dried eyeliner with an oil-based makeup remover wiped over closed lids.

Pros: combines eyeliner and lash adhesive in one step, cutting down on layered products at the lash line; waterproof once set; latex-free, which lowers the risk of the latex-allergy reactions some traditional lash glues can cause. Cons: timing matters since it doubles as an adhesive, so lashes applied once it's no longer tacky won't hold well; being clear and water-based, it's harder to see exactly where the line sits while wet compared to a black eyeliner; removing the dried eyeliner needs an oil-based remover rather than plain water.