What are fatty alcohols?

Fatty alcohols are indeed closely related to fatty acids and are produced through the hydrogenation of these acids. This process involves the addition of hydrogen to a fatty acid, which transforms it into a fatty alcohol. The result is a chain of carbon atoms that has an -OH (hydroxyl) group, giving it alcohol characteristics. This transformation not only alters the physical properties of the original fatty acid but also influences its applications in cosmetic and skincare products, where fatty alcohols often serve as emollients, emulsifiers, or thickening agents.

In the context of the other options, heavy oils processed with enzymes refer more to the process of making triglycerides or other oil forms, which doesn't specifically pertain to fatty alcohols. Saturated fats derived from palm oil represent a different category of lipids entirely, typically includes triglycerides rather than the specific structures related to fatty alcohols. Lastly, while plant extracts with emulsifying properties may play a role in cosmetic formulations, they are distinct from fatty alcohols, which are synthesized compounds derived from fatty acids rather than extracts from plants.