
TETRAMETHYL CYCLOPENTENE BUTENOL
Description
Tetramethyl cyclopentene butenol (TMCB) is a synthetic fragrance ingredient widely used in the cosmetics and personal care industry. This colorless to pale yellow liquid compound belongs to the family of cyclic terpenes and is characterized by its woody, floral scent with subtle green and fruity undertones. TMCB is primarily valued for its ability to impart a natural, fresh aroma to various skincare and beauty products.
In formulations, TMCB acts as a fixative, helping to stabilize and prolong the overall fragrance profile of a product. Its molecular structure allows for slow evaporation, contributing to the longevity of scents. While primarily used for its olfactory properties, TMCB also exhibits mild antimicrobial activity, potentially offering secondary benefits in preserving product integrity.
From a safety standpoint, TMCB has been evaluated by the Research Institute for Fragrance Materials (RIFM) and is generally recognized as safe for use in cosmetic applications when used at recommended concentrations. However, as with many fragrance ingredients, it may cause sensitization in some individuals with particularly reactive skin. Formulators typically incorporate TMCB at concentrations below 1% in leave-on products and slightly higher levels in rinse-off formulations.