INCI: Propylene glycol, o-phenylphenol

Iscaguard OPP is a liquid preservative containing o-phenylphenol. This preservative has a wide spectrum of activity, and will tolerate high pH environments, as well as high temperature processing.

Iscaguard TC
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Thiazolinone Free
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Formaldehyde Free
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Preservative Free
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Recommended Applications

In Use Concentrations ISCA recommendation EU Cosmetic Regulation (max)
Leave-on 0.3 – 0.5 0.5 %
Rinse-off 0.3 – 0.5 0.5 %

The biocidal efficacy of Iscaguard OPP is comparable to Triclosan in a typical handwash formulation.

Biocidal Kill Efficacy (handwash)
CFU Reduction (%) 30 Seconds 5
Triclosan (as 1.0 % Iscaguard TC6) >99.99 >99.99
o-Phenylphenol (as 2.0 % Iscaguard OPP) 99.4 99.7
Control   5.58 7.21
INCI: Aqua, Sodium Laureth Sulfate, Cocamidopropyl Betaine, Sodium Sulfate, Peg-120 Methyl Glucose Dioleate, Preservative, Sodium Chloride
Formulation guidelines
pH (effective range) 3.0 - 14.0
Solubility (Water) Partially soluble
Solubility (Glycols) Soluble
Maximum Process Temperature 200 °C
General information

Iscaguard OPP is compatible with most commonly used personal care ingredients. It is very stable at high pH and temperature, making it particularly suitable for use in the production of bar soaps.