Pullulan
Reviewed by Emma · Last updated 18 Aug 2026
Also known as: Beta-Glucan
Versatile skin care ingredient known for its hydration and antioxidant properties | Works well as a “carrier” to deliver active ingredients where they need to go
Addresses
EWG Safety Score
What Is Pullulan?
Pullulan is a natural fibrous polymer produced by a type of black yeast known as Aureobasidium pullulans. It contains complex sugars known as polysaccharides, which makes it a good water-binding agent (i.e. hydration) and antioxidant in skin care products.
It is proven to work well as a “carrier” for other skin care actives, effectively delivering the ingredients where they need to go.
Additionally, research shows pullulan has the potential to help with strengthening skin’s microbiome. Studies also show it can provide temporary mechanical support for skin’s underlying structures as well as a subtle yet visible lifting effect owing to its non-irritating film-forming properties
More recently, pullulan has been utilized in dissolving microneedle patch products where it is believed to enhance transdermal delivery of ingredients. Scientists are also exploring the therapeutic benefits of pullulan-based hydrogel films for various skin conditions.
As a texture-enhancing ingredient, characteristics of pullulan include its water solubility and relatively low viscosity compared to other polysaccharides. It possesses good thermal stability and has earned Generally Recognized as Safe (GRaS) status from U.S. FDA.
Clinical Evidence & References
Published Research
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Journal of Functional Biomaterials, March 2020, pages 1-17 [URL_NOT_FOUND]
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International Journal of Biological Macromolecules, December 2019, pages 290-298 [URL_NOT_FOUND]
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Journal of Tissue Engineering and Regenerative Medicine, November 2019, pages 1,965-1,977 [URL_NOT_FOUND]
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Journal of Biomedical Materials Research, October 2019, pages 2,325-2,334 [URL_NOT_FOUND]
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International Journal of Basic and Applied Sciences, 2012, pages 202-219 [URL_NOT_FOUND]
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