Magnetic Gel Liner is a matte black gel eyeliner from Ardell that doubles as the adhesive base for magnetic false lashes, replacing standard lash glue rather than being used alongside it. The gel contains iron powder and iron oxide pigment, and lash bands with a thin metal strip built in (Ardell's magnetic lash styles or compatible magnetic lashes from other brands) cling to it once applied.
It's aimed at people who want to wear magnetic lashes without also handling liquid lash glue, including anyone who finds traditional lash adhesive messy or irritating. It can also be worn on its own as a waterproof, smudge-resistant gel liner even without lashes on top. One tube is rated for roughly 36 or more applications.
To use, apply two coats along the upper lash line and place the magnetic lash band onto the liner while it is still semi-wet, pressing gently to secure it; timing the second coat matters since the lashes need to go on before it fully sets. To remove, gently peel off the lashes first, then wipe an oil-based makeup remover over closed lids to break down the liner, cleaning residue carefully off the lash band so the magnets stay attached.