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TRANS-TRIMETHYLUNDECADIENAL

Description

Trans-trimethylundecadienal, also known as Aldehyde C-14 or Undecylenic Aldehyde, is a synthetic fragrance ingredient commonly used in skincare and haircare formulations. This colorless to pale yellow liquid possesses a fresh, citrusy, and slightly floral aroma with green undertones. Its molecular structure consists of a long carbon chain with unsaturated bonds and an aldehyde group, contributing to its distinctive olfactory profile.

In skincare and haircare products, trans-trimethylundecadienal serves primarily as a fragrance enhancer, imparting a clean, fresh scent to formulations. It is often used in small concentrations, typically ranging from 0.1% to 1%, to achieve the desired olfactory effect without overwhelming other ingredients. This compound also exhibits some antimicrobial properties, potentially contributing to product preservation.

While generally considered safe for cosmetic use, some individuals may experience skin sensitization or irritation. As with any fragrance ingredient, patch testing is recommended for those with sensitive skin or known allergies. Trans-trimethylundecadienal is subject to regulatory limits in certain regions to ensure product safety and minimize potential adverse reactions. Formulators should adhere to established guidelines when incorporating this ingredient into skincare or haircare products.