Back to Ingredient Dictionary

9-UNDECENAL

Description

9-Undecenal is a versatile aldehyde compound utilized in both skincare and haircare formulations. This synthetic ingredient, also known as undecylenal, is derived from castor oil and possesses a distinct floral-citrus aroma. In skincare applications, 9-undecenal functions as an effective antimicrobial agent, helping to combat acne-causing bacteria and maintain a balanced skin microbiome. Its mild astringent properties contribute to pore refinement and oil control, making it particularly beneficial for oily and acne-prone skin types.

In haircare products, 9-undecenal serves multiple purposes. It acts as a fragrance enhancer, imparting a fresh, long-lasting scent to shampoos and conditioners. Additionally, its antimicrobial properties help maintain scalp health by reducing the presence of harmful microorganisms. 9-Undecenal also exhibits antistatic effects, which can help reduce frizz and improve hair manageability.

When formulating with 9-undecenal, it is crucial to use appropriate concentrations to avoid potential skin irritation. Typically, it is incorporated at levels between 0.1% to 1% in skincare and haircare products. This ingredient is compatible with a wide range of formulation bases and can be combined with other active ingredients to create comprehensive skincare and haircare solutions.