The Beauty & Personal Care Brand Builder Series

Ingredient Deep Dive

Chlorphenesin

The Beauty & Personal Care Brand Builder Series

Ingredient Deep Dive

Chlorphenesin

The Preservative-System Partner

Chlorphenesin is a mild preservative used to help protect cosmetics from microbial spoilage, most often as part of a broader preservative system.

Effective against bacteria and fungi and stable across a wide pH range, it broadens and reinforces preservation, helping keep water-containing products safe over their shelf life.

Quick Insights

Ingredient Rating:

GOOD

Type of Ingredient:

Preservative

Intended Function:

A mild, stable cosmetic preservative used to broaden and reinforce a preservative system.

Common Applications:

Used across skincare and treatment formulas.

Target Audience:

Formulators building robust, broad-spectrum preservation systems.

Also Known As:

Chlorphenesin

Benefits of Chlorphenesin

A stable preservative that broadens and reinforces a formula’s preservation system.

Antimicrobial: Helps guard against bacteria and fungi.
Broad pH Stability: Works across a wide pH range.
System Partner: Pairs well with phenoxyethanol and other preservatives to broaden coverage.
Well Tolerated: Gentle at typical use levels.
Reliable: A well-established cosmetic preservative.

How It Works

Chlorphenesin interferes with the growth and reproduction of microorganisms, helping suppress microbial populations in a formula. Because its spectrum complements common preservatives, it is frequently combined with them to achieve robust, broad-spectrum protection.

Formulating with Chlorphenesin

Chlorphenesin is added to the water phase at low levels (per supplier guidance), usually alongside a primary preservative. Confirm the finished product passes challenge testing and observe good manufacturing practice.

Safety Analysis

Chlorphenesin is well tolerated at typical use levels. As always, substantiate the finished product’s safety (e.g. patch / HRIPT testing) in line with MoCRA requirements.

References

https://incidecoder.com/ingredients/chlorphenesin

https://cosmeticsinfo.org/ingredient/chlorphenesin/

https://cosmeticanalysis.com/cosmetic-ingredients/chlorphenesin

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