Polyglyceryl-3 Diisostearate



Polyglyceryl-3 Diisostearate at a glance

  • Used as an emollient, surfactant, and emulsifier
  • According to its manufacturers, gentle enough for sensitive skin
  • Ruled safe as used in cosmetics
  • Is a yellow liquid in its raw form

Polyglyceryl-3 Diisostearate description

Polyglyceryl- 3 diisostearate is a diester (groups of carbon bound to other atoms) that is used as an emollient (moisturizing ingredient) and surfactant in cosmetics. According to one of its suppliers, it helps emulsify oil and water mixtures, and is gentle enough for use on sensitive skin. In its raw form, it is a light yellow liquid, used in concentrations in leave-on products as high as 39%. The independent Cosmetic Review Panel has found polyglyceryl 3 diisostearate to be non-sensitising and safe as used in makeup, skin care, and hair care products.

Polyglyceryl-3 Diisostearate references

  • https://cosmetics.specialchem.com/inci-ingredients/polyglyceryl-3-diisostearate
  • https://www.atamanchemicals.com/polyglyceryl-3-diisostearate_u24686/
  • http://www.cir-safety.org/sites/default/files/PGlyFE122015SLR.pdf

Peer-reviewed, substantiated scientific research is used to assess ingredients in this dictionary. Regulations regarding constraints, permitted concentration levels and availability vary by country and region.

Ingredient ratings


Proven and supported by independent studies. Outstanding active ingredient for most skin types or concerns.


Necessary to improve a formula's texture, stability, or penetration.


Generally non-irritating but may have aesthetic, stability, or other issues that limit its usefulness.


There is a likelihood of irritation. Risk increases when combined with other problematic ingredients.


May cause irritation, inflammation, dryness, etc. May offer benefit in some capability but overall, proven to do more harm than good.


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Not Rated