Milady Esthetics State Board Practice Test 2025 - Free Esthetics Exam Practice Questions and Study Guide

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What term describes fatty acids that have been exposed to hydrogen?

Fatty alcohols

Saturated fats

Saturated fats are defined as fatty acids that have been exposed to hydrogen, leading to the maximum number of hydrogen atoms being attached to the carbon chain. This saturation results in a structure that is solid at room temperature and is commonly found in animal fats and some plant oils. When a fatty acid is saturated, it means that there are no double bonds between the carbon atoms; every carbon atom in the chain is bonded to hydrogen atoms. This characteristic contributes to the stability and texture of saturated fats, which contrasts with unsaturated fats that contain one or more double bonds and are typically liquid at room temperature. Understanding this distinction is crucial for recognizing the roles of different types of fats in nutrition and skincare products.

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Unsaturated fats

Glycerides

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