Oregon Esthetician State Board

What are fatty esters produced from?

1. Combining fatty acids and fatty alcohols

2. Combining amino acids and fatty alcohols

3. Combining fats and waxes

4. Combining proteins and carbohydrates

The correct answer is: Combining fatty acids and fatty alcohols

Fatty esters are produced through a specific chemical reaction that involves combining fatty acids with fatty alcohols. This process is known as esterification, where the hydroxyl group (-OH) of the fatty alcohol reacts with the carboxyl group (-COOH) of the fatty acid, resulting in the formation of an ester bond and releasing water as a byproduct. The significance of fatty esters lies in their various applications in cosmetics and skincare products, where they can serve as emollients, surfactants, or thickeners. This property enhances the texture and feel of formulations while also improving their functionality. Understanding this reaction is key for estheticians who create and utilize products containing fatty esters, as it helps them grasp how these ingredients interact with the skin and contribute to product efficacy.