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HEXAHYDRO-4,6,6,9,9-PENTAMETHYL-NAPHTHOPYRAN

Description

Hexahydro-4,6,6,9,9-pentamethyl-naphthopyran, also known as Romandolide, is a synthetic musk fragrance used in various skincare and personal care products. This versatile compound belongs to the polycyclic musk family and is prized for its long-lasting, woody-floral scent profile. Its molecular structure consists of a naphthopyran ring system with multiple methyl substituents, contributing to its unique olfactory properties.

In skincare formulations, Hexahydro-4,6,6,9,9-pentamethyl-naphthopyran serves as a fixative, enhancing the longevity of other fragrance components and providing a subtle, pleasant aroma to products. It is particularly effective in leave-on applications such as lotions, creams, and serums. This ingredient exhibits good stability in various pH environments and is compatible with a wide range of cosmetic bases.

While primarily used for its fragrance properties, Hexahydro-4,6,6,9,9-pentamethyl-naphthopyran may also contribute to masking undesirable odors in formulations containing active ingredients. It is generally considered safe for use in cosmetics when applied at recommended concentrations, typically ranging from 0.1% to 1% in finished products. However, as with any fragrance ingredient, patch testing is advisable for individuals with sensitive skin or known fragrance allergies.