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But you have to trust the process.

But, what we really want are the very best beauty recommendations.

Billie Eilish and Ali Webb wearing Sacheu lip liner stain

Courtesy / Byrdie

Welcome toPop Star-Proof, a series where we test these recommendations in real life.

Billie Eilish’s go-to lip liner stain.

Billie Eilish is undeniably one of the biggest pop stars of the moment, especially among younger generations.

Sacheu Peel-Off Lip Liner Stay-n in p-inked rosy pink

Sacheu

This quick test-drive had me excited to see how the viral product would perform over a longer period.

I paired it with Pat McGrath’s Lust Gloss in shade Blood 2.

I needed to reapply the gloss after that, but the liner was perfectly intact.

Ali Webb wearing the Sacheu Lip Liner Stay-n before peeling off

Ali Webb

I’ve been in a few meetings, and I haven’t reapplied any products.

The gloss has faded a bit but is still intact, and the lip liner stain hasn’t budged.

6:30 PM

I’ve just left the office at golden hour before heading to an evening event.

Byrdie editor Ali Webb wearing a red lip with Sacheu Lip Liner Stay-n and Pat McGrath Lust Gloss

Ali Webb

I’d consider this experiment a success.

Byrdie editor Ali Webb wears a red lip with Sacheu Lip Liner Stay-n and Pat McGrath Lust Gloss

Ali Webb

Byrdie editor Ali Webb wears a red lip featuring Sacheu Lip Liner Stay-n and Pat McGrath Lust Gloss

Ali Webb

Ali Webb wears a red lip with Sacheu’s lip liner stain and Pat McGrath Lust Gloss

Ali Webb

Byrdie editor Ali Webb wears Sacheu lip liner stain in red

Ali Webb