Phytosterols

A plant-based version of cholesterol that is used for its emollient properties in skincare. The richest sources of phytosterols are corn, rapeseed, and wheat germ oil.
Antioxidant
Other functions
Origin
Phytosterols

Overview

Phytosterols are a plant version of cholesterol (which only appears in animals) that are added to skincare products for their emollient properties.

Unlike animals, which only use a single sterol for their cell structures (cholesterol), plants use a variety of sterols, most commonly sitosterol, stigmasterol, and campesterol. You will most likely meet phytosterols in various plant-based oils, where they account for around 1 – 2% of the oil weight. The richest source of phytosterols is corn, rapeseed, and wheat germ oil.

Science

1
Moreau, R. A., et al. (2018). Phytosterols and their derivatives: Structural diversity, distribution, metabolism, analysis, and health-promoting uses. Progress in Lipid Research, 70, 35–61.