Preservative for the Cosmetics Industry

ROKONSAL B flüssig

INCI Name
Sodium Benzoate / Ethylparaben

DESCRIPTION
ROKONSAL B flüssig consists of a combination of Sodium-benzoate and Ethylparaben in an aqueous solution. It does not contain formaldehyde or formaldehyde-releasing substances and conforms to the regulations of the EC cosmetics law.
The ingredients of ROKONSAL B flüssig are allowed to be used as food-preservatives. In cosmetic-products they have to be declared, as shown in the INCI-nomenclature.
By the choice of an organic acid as the product-base ROKONSAL B flüssig can be classified as a "mild preservative". However this fact requires the pH of the final product to be adjusted to values not higher than 5, because the organic acid has to be present as undissociated molecule, to develop its antimicrobial activity.

CHEMISTRY

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PROPERTIES
The combination of actives in ROKONSAL B flüssig predominantly shows a microbiostatic spectrum of activity against gram-positive and gram-negative bacteria. However, at the usual use-levels also growth of fungi and yeast will be inhibited.

APPLICATIONS
ROKONSAL B flüssig has proven to be an effective preserving system for rinse-off-products like shampoos, shower-gels, foam-baths etc., as these products generally have slightly acidic pH, which is a necessary condition for a safe use, as explained above.

Due to its good skin-compatibility ROKONSAL B flüssig is suitable for high-quality care-cosmetics like creams, emulsions, lotions and gels, if they conform to the necessary pH-conditions. On account of its good dispensability ROKONSAL B flüssig can be used in O/W-emulsions as well as in W/O-emulsions.

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