No known benefits

Chlorphenesin at a glance

  • Preservative that inhibits contamination in skin care formulas
  • Extends a product’s shelf life
  • Helps prevent unwanted odor
  • Used in combination with other preservatives

Chlorphenesin description

As a skin care ingredient, chlorphenesin is used as a water- and glycerin-soluble preservative to inhibit contamination. Since it’s considered weak against some types of bacteria, it’s always combined with other preservatives, such as phenoxyethanol and caprylyl glycol, to boost stability and increase the product’s shelf life. It is also considered a “cosmetic biocide” to help prevent unwanted odors on skin. In 2014, the Cosmetic Ingredient Review Expert Panel concluded chlorphenesin was safe for skin (their report surveyed on-market formulas with concentrations up to 0.32% in rinse-off products and 0.3% in leave-on products).

Chlorphenesin references

  •, Accessed June 2021, ePublication
  • International Journal of Toxicology, May 2014, pages 5S-15S

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.


We couldn't find this in our ingredient dictionary. We log all missing ingredients and make continuous updates.

Not rated

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