PPG-12/SMDI Copolymer


Film-Forming Agent

PPG-12/SMDI Copolymer at a glance

  • A synthetic polymer combined with polypropylene glycol
  • Offers film-forming and skin-conditioning properties
  • Also serves as a fixative for key ingredients
  • Very stable, even at high temperatures

PPG-12/SMDI Copolymer description

PPG-12/SMDI copolymer is a polymer that serves as a film-forming agent in cosmetics products. The SMDI portion stands for Saturated Methylene Diphenyl Diisocyanate, whose monomers (molecules that bond with other molecules to create polymers) are combined with an ultra-light polypropylene glycol (PPG). Along with film-forming, PPG-12/SMDI copolymer also offers fixative properties to keep key ingredients suspended and helps to condition skin. Usage levels range from 1–5% when it is part of a blend. It’s considered non-irritating and can play a supporting role in creating pleasing liquid and gel textures plus keep such textures stable.

PPG-12/SMDI Copolymer references

  • Clinical, Cosmetic and Investigative Dermatology, April 2015, pages 179-185
  • International Journal of Nanomedicine, August 2013, pages 3071-3091
  • Danish Ministry of the Environment, Survey of Chemical Substances in Consumer Products 2007, No. 82

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