Dilinoleic Acid Propanediol Copolymer



Dilinoleic Acid Propanediol Copolymer at a glance

  • Emollient, film-former, and viscosity increasing agent
  • Often used in lip products where it lends a glossy effect + hydrating emollience
  • May also contribute long wear properties in sunscreen products
  • Slightly yellow, pourable, odorless liquid in raw material form

Dilinoleic Acid Propanediol Copolymer description

Dilinoleic acid/propanediol copolymer’s reported cosmetics functions include emollient, film-former, and viscosity increasing agent (texture enhancer). Top uses of this ingredient fall mostly into the realm of makeup, specifically lip products where it can lend a glossy effect + emollience. It plays well in lipsticks, lip balms and other lip formulations due to its solubility in common-to-lip-product ingredients such as castor oil and esters. Dilinoleic acid/propanediol copolymer is also said to contribute to long wear properties in sunscreen products, due its insolubility in water and alcohol. Officially, the Personal Care Products Council classifies dilinoleic acid/propanediol copolymer as a synthetic ingredient; however, suppliers note it can be vegetable-derived. As a raw material, it is a slightly yellow, pourable, odorless liquid. At the time of this writing, independent research on this ingredient is lacking. Although we could not find a Cosmetic Ingredient Review assessment for dilinoleic acid/propanediol copolymer, there is no suspected reason to be concerned about its safety. Supplier RIPT testing (a type of testing where the ingredient is applied to skin and monitored for irritancy effects) revealed favorable results. Standard usage levels range from 1–5% depending on formulary needs

Dilinoleic Acid Propanediol Copolymer references

  • Personal Care Products Council, Accessed December 2022, ePublication
  • UL Prospector (supplier info), Accessed December 2022, ePublication

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

We have not yet rated this ingredient because we have not had a chance to review the research on it.