Siren eyes are an eye make-up look that elongates the eye into a narrow almond, with a thin sharp wing pulled outward, dark shadow blended from the inner corner and a defined lower lash line for a sultry effect.
Also known as: siren eye makeup, siren liner, fox eye liner, elongated cat eye
Siren eyes are the smoky, elongated opposite of the wide-open doe eye. Both names came out of TikTok, but the siren shape is old: it is the narrowed, feline eye of 1960s cinema and of Emily Ratajkowski and Zendaya on the red carpet. The aim is length, not size. Everything pulls outward and slightly up.
Revlon's breakdown gives the recipe. A thin, sharp wing flicks outward with the slightest pull upward. A darker, smoky shadow is blended from the inner corner outward so the lid reads deeper at both ends. The lower lash line is defined with dark shadow or a smudged pencil, and the liner is often extended inward toward the tear duct to lengthen the inner corner (Revlon). Lashes go at the outer corners.
The doe eye does the reverse: a thin line close to the lashes with almost no wing, a light neutral lid, a nude or white pencil in the lower waterline to open the eye, and lashes concentrated at the centre (100% Pure). Choosing between them is a question of mood and of eye shape: round eyes gain length from the siren, while already long or downturned eyes can look tired with it.
A brush-tip liquid liner draws the finest siren flick, and a kohl or gel pencil gives the smudged lower line. Black is traditional; a deep plum or bronze keeps the shape while softening the contrast, which suits hazel and green eyes. The wing itself follows the same angle rule as any winged liner: it continues the line of the lower lashes toward the tail of the brow.