Polyglyceryl-4 Laurate
Reviewed by Emma · Last updated 18 Aug 2026
Also known as: Lauric Acid
May be plant-derived or synthetic | Ester of a polymer of glycerin and lauric acid, present in coconut or palm oils
Addresses
EWG Safety Score
What Is Polyglyceryl-4 Laurate?
A plant-derived or synthetic ester of a polymer of glycerin (known as polylglycerin-4) and lauric acid, a saturated fatty acid that can be found in coconut or palm oils. This versatile ingredient works as an emollient, emulsifier, and a mild cleansing agent (surfactant).
The safety assessment of this ingredient shows that it can also serve as a penetration enhancer; for example, it can improve ceramide penetration into skin.
According to one of its suppliers, in its raw form it is a clear or yellow syrupy liquid.
Polyglyceryl-4 laurate is considered safe as used in cosmetics by the independent Cosmetic Ingredient Review board and is considered to be a non-irritant. Typical concentration ranges are from 5–10%, although lower amounts may be used if necessary or if this ingredient is part of a blend.
See: Lauric Acid
Clinical Evidence & References
Published Research
-
Journal of Nanoscience and Nanotechnology, December 2021, pages 6188-6195 [URL]
-
European Journal of Biopharmaceutics, September 2012, pages 139-150 [URL]
-
https://www.cir-safety.org/sites/default/files/polyglyceryl%20fatty%20acid.pdf [https://www.cir-safety.org/sites/default/files/polyglyceryl%20fatty%20acid.pdf]
-
http://www.cir-safety.org/sites/default/files/polyglyceryl%20fatty%20acid.pdf [http://www.cir-safety.org/sites/default/files/polyglyceryl%20fatty%20acid.pdf]
From the Clinic
Not sure what your skin actually needs?
Two minutes, a few questions, and we’ll point you at what matters — no guesswork.
Take the skin quizRelated Ingredients
Polyglyceryl-4 Caprylate
A gentle emollient and emulsifier derived from plant-based sources
Polyglyceryl-4 Cocoate
A coconut-derived emollient and emulsifier that softens and helps stabilise formulations
Polyglyceryl-4 Diisostearate …
A synthetic emulsifier that stabilises oil and water in skincare formulations
Polyglyceryl-4 Oleate
Ester of oleic acid and polyglycerin-4 | Emulsifying agent used to mix oil and water-based ingredients in formulas
Polyglyceryl-5 Dioleate
An emulsifier that helps blend oil and water-based ingredients in skincare formulations
Polyglyceryl-5 Oleate
An emulsifier derived from plant oils that stabilises oil and water in formulations
Learn More About Skincare Ingredients
Explore our comprehensive ingredient glossary to understand what's in your products.
Browse All IngredientsShop Our Products
Find professional skincare solutions at Skintique.