optiphen™ bs preservative | rokonsal™ bs preservative

chemistry: antimicrobials

INCI: Sodium Benzoate (and) Potassium Sorbate (and) Aqua (Water)

optiphen™ bs is a broad spectrum liquid preservative system and effective against Gram-negative bacteria, yeast and mold. optiphen™ bs preservative was designed specifically for personal care formulations with a pH up to 5.4 It is based on a combination of nature-identical substances: sodium benzoate and potassium sorbate. Ashland's nature-identical preservatives are ideal solutions for products aimed at the Eco-aware consumer. rokonsal™ bs preservative is ECOCERT-, NATRUE-, COSMOS - and BDIH-compliant.

The product is also marketed under the trade name rokonsal™ bs.


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trade name: optiphen™ bs preservative | rokonsal™ bs preservative

features and benefits
  • microstatic spectrum of activity
  • effective up to pH 5.4
  • nature-identical combination
  • global use


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

use levels: 0.3-1.0%

max. temperature during production: below 80°C

additional information

pH 2 - 5.4
regulatory compliance* Brazil, Canada, China, EU, Japan, Mexico, US
technologies without formaldehyde donor, without halogen, without isothiazolinones, without paraben, without phenoxyethanol
chemistry type with organic acids

+++ highly recommended, ++ recommended, + suitable

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

sustainability features

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PHC21 sust graphics biodegradable.jpg
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sustainability descriptor page >
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