Capryloyl Glycine


Cleansing Agent

Capryloyl Glycine at a glance

  • Synthetic amino acid derivative that functions to soften skin and condition hair
  • Can also be used as a surfactant
  • Helps protect skin’s surface from water loss
  • Enhances the effectiveness of preservatives, allowing lower amounts to be used

Capryloyl Glycine description

Capryloyl glycine is a synthetic amino acid derivative that functions as a skin-softening or hair-conditioning agent. Depending on the formula, it can also be used as a surfactant. Capryloyl glycine helps protect skin’s surface from water loss and can enhance the effectiveness of cosmetic preservatives, allowing lower amounts to be used (a feature that minimizes the risk of a sensitised reaction). As a raw material, suppliers of this ingredient describe it as a white to off white powder. In 2017, the Cosmetic Ingredient Review Expert Panel deemed capryloyl glycine safe as used in cosmetics. Their report surveyed products containing up to 2%. As an aside, capryloyl glycine has also been studied as key topical ingredient to inhibit excessive body hair growth. One study showed a 4% concentration (in tandem with soy isoflavones) was successful in this regard due to its ability to inhibit an enzyme present in hair follicles.

Capryloyl Glycine references

  • UL Prospector, Accessed September 2021, ePublication
  • Journal of Cosmetic Dermatology, March 2021, pages 18-22
  • International Journal of Toxicology, May/June 2017, pages 17S-56S

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