1-(Octahydro-2,3,8,8-Tetramethyl-2-Naphthalenyl)Ethan-1-One

Iso E Super (INCI: 1-(Octahydro-2,3,8,8-Tetramethyl-2-Naphthalenyl)Ethan-1-One) is a synthetic polycyclic musk-woody fragrance molecule developed by International Flavors & Fragrances (IFF) in the 1970s, renowned for its distinctive cedarwood, amber, and velvety woody character with a subtle spicy undertone. What makes it uniquely prized in perfumery is its 'skin-enhancing' or 'supercharging' effect — it acts as a fragrance booster that amplifies and extends the longevity of other aromatic compounds in a blend, a property sometimes described as making the wearer's natural skin scent more prominent. Formulators choose it not only for its own diffusive, warm woody profile but also for its ability to add depth, smoothness, and tenacity to fine fragrances, personal care products, and home care formulations, often used at concentrations ranging from trace levels up to 100% in niche perfumery applications.