No known benefits

Triethoxycaprylylsilane at a glance

  • Silicone that functions as a binding agent and emulsion stabilizer
  • Used to coat mineral sunscreen actives, creating more pleasant aesthetics
  • Can also help reduce oxidative stress
  • Proven track record of safety in cosmetic use

Triethoxycaprylylsilane description

Triethoxycaprylylsilane is a silicone that functions as a binding agent and emulsion stabilizer. It is often used to coat mineral sunscreen actives, allowing for a more aesthetically pleasing texture and appearance. Studies show it can also help reduce oxidative stress when used in sunscreen formulations. In 2016, the Scientific Committee on Consumer Safety (SCCS) concluded triethoxycaprylylsilane can safely be used to coat sunscreen actives. This was echoed in the Cosmetic Ingredient Review Expert Panel’s 2017 safety assessment of this ingredient where it was deemed safe in the practices of use and concentration described in the report (up to 2.6%). In its physical form, triethoxycaprylylsilane is supplied as a clear, colourless liquid.

Triethoxycaprylylsilane references

  • The Cosmetic Ingredient Review, January 2017, pages 1-16
  • CIR Report Data Sheet (
  • Scientific Committee on Consumer Safety, November 2016, pages 1-27
  • Journal of Nanoparticle Research, May 2014, pages 1-13
  • Toxicological Sciences, September 2011, pages 264-280

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.