optiphen™ gp preservative

chemistry: antimicrobials

INCI: Phenoxyethanol (and) Propanediol (and) Propylene Carbonate (and) Caprylhydroxamic Acid (and) O-cymen-5-ol

optiphen™ gp preservative is effective against gram-positive and gram-negative bacteria, yeast and mold. It offers excellent heat stability, works across a wide pH window and is easily solubilized in water. optiphen™ gp preservative is readily biodegradable and solves the growing consumer interest in natural and nature-derive ingredients, as it provides a content of 37% natural origin, applying the ISO 16128-2:2017(E) standard. The product has been tested on delicate Asian skin, which tend to be more sensitive  and it combines no skin irritation and good compatibility in a wide range of personal care products like water facial masks, fragrance free products and  transparent formulations. 

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trade name: optiphen™ gp preservative

features and benefits
  • broad-spectrum activity against bacteria, yeast and mold
  • sophisticated delivery system optimizes the efficiency of the active ingredients
  • combining no skin irritation and good compatibility in a wide range of personal care products
  • effective over pH range 4 to 8
  • readily biodegradable and sustainable


leave-on +++
rinse-off +++
wet wipes +++

use levels: 0.4 - 1.5%

max. temperature during production: below 80°C

additional information

pH 4 - 8
regulatory compliance* Brazil, Canada, China, EU, Japan, Mexico
technologies without formaldehyde donor, without halogen, without isothiazolinones, without paraben
chemistry type with multifunctional ingredient, with phenoxyethanol

+++ highly recommended

*For country-specific details, please contact your technical service representative.

sustainability features

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sustainability descriptor page >
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Tough on microbes and kind to skin
Read our recent article with Cosmetic Toiletries, and hear how Ashland is responding to personal care manufacturers face demand for products made using milder, safer and more eco-friendly preservative technologies. Ashland present its effective and mild solution - Optiphen GP