No known benefits

Polyamide-8 at a glance

  • A synthetic polymer made from multiple ingredients
  • Serves as an emollient, occlusive, film-former, and binding agent
  • Often used in lipsticks and eyeshadows
  • Can create clear formulas with high gloss and water resistance

Polyamide-8 description

Polyamide-8 is a synthetic polymer made from the plasticizing solvent neopentyl glycol, the benign fatty alcohol stearyl alcohol, and naturally-derived hydrogenated dilinoleic acid. The blend produces a new ingredient that offers emollient, binding, and film-forming properties. Polyamide-8 is often used in sunscreens, lipsticks, lip glosses, and eyeshadows due to its water- and transfer-resistant properties which improve wear time. It is compatible with a wide range of oils, where it helps provide better structure. The molecular weight of this ingredient prohibits penetration into skin. Usage levels of polyamide-8 range from 1-10%, though lower amounts may be used depending on the intended results. It is considered safe as used in cosmetics.

Polyamide-8 references

  • ACS Applied Materials and Interfaces, November 2015, pages 82-93
  • Biomacromolecules, November 2015, pages 3,491-3,498
  • https://cosmetics.specialchem.com/product/i-croda-oleocraft-lp-20

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.