Is peg-100 stearate vegan?

PEG-100 stearate is a synthetic emulsifier and surfactant formed by combining polyethylene glycol with stearic acid. It is produced through the chemical reaction of ethylene oxide with stearic acid, creating a substance that helps water and oil blend smoothly. While it is predominantly used in cosmetics, personal care lotions, and topical pharmaceuticals, it also appears occasionally in specialized dietary supplements and processed food products.

This ingredient is considered possibly vegan because stearic acid can be sourced from either plants or animals. Plant-derived stearic acid is typically extracted from vegetable fats such as palm oil, coconut oil, or soybean oil. Alternatively, it can be obtained from animal fats, most commonly rendered beef or sheep tallow. Product labels generally do not disclose the origin of the fatty acid used. To verify that PEG-100 stearate in a particular item is free from animal-derived materials, consumers need to look for an official vegan certification on the packaging or inquire directly with the manufacturer.