MAC Erogenous Zone is a very cool-toned, dark blue with a glossy finish. It is a limited edition eyeshadow that retails for $21.00 and contains 0.5 oz.
MAC Erogenous Zone Studio Eye Gloss ($22.00 for 0.50 fl. oz.) is described as a "violet with multi-coloured glitter." It's a muted, navy blue with fuchsia, blue, and violet pearl in a glossy base. It creased within two minutes, was incredibly thick and tacky (like applying glue to your lids), made my skin stick to my fingertips/brushes and then later my lid stick to the skin above my lid, or my lash lines to stick together as the gloss migrated into my inner and outer corners and below the lash line. Makeup Geek Nautica (DC, $6.00) is less shimmery, less glossy (90% similar). MAC Banafsaji (LE, $17.00) is darker, less glossy (90% similar). Urban Decay Beat Down (LE, $19.00) is less shimmery, less glossy (90% similar). ColourPop Baby T (LE, $6.00) is less shimmery, darker, less glossy (85% similar). Le Metier de Beaute Sapphire (LE, $30.00) is darker, less glossy (90% similar). Givenchy Bleu Soie (4) (P, $23.00) is less shimmery, darker, less glossy (85% similar). Marc Jacobs Beauty The Siren #6 (LE, ) is lighter, brighter, less glossy (85% similar). See comparison swatches / view dupes side-by-side.