What it is
Methyl glucose sesquistearate is an ester formed between methyl glucoside, derived from glucose, and stearic acid, a fatty acid. As a mild nonionic emulsifier it helps create stable oil-in-water emulsions, giving sunscreens and moisturizers a smooth, soft texture. Its sugar-based polar head also provides a gentle, conditioning feel on the skin.
Safety & warnings
Methyl glucose esters are considered mild and well tolerated, with a low irritation and sensitization profile, making them common in products for sensitive skin. They are not fragrance allergens.
Origin & sourcing
Derived from renewable raw materials: a glucose-based methyl glucoside reacted with stearic acid, which may be of vegetable origin.
Questions everyone asks
What is methyl glucose sesquistearate used for?
It is a gentle sugar-derived emulsifier that keeps the oil and water parts of a sunscreen blended into a stable, smooth cream.
Is methyl glucose sesquistearate harsh on skin?
No. It is a mild nonionic emulsifier with a low irritation profile, often used in formulas aimed at sensitive skin.