Phenostat is a paraben-free preservative blend that can be used to provide cost effective, broad spectrum coverage. It can be used as an alternative to traditional preservative blends that are seen as undesirable by the consumer. A special benefit of Phenostat is that it performs superbly at neutral pH, a state where many other alternative materials are ineffective.
Phenostat is compatible with most cosmetic ingredients. However, it can interact with residual iron found in some clay-type compounds (e.g., bentonite, silicates, etc). This interaction with iron may produce a very mild orange color or color shift that is barely perceivable to the eye in most formulations. In cases where the clays are high in iron, the colored compounds may be more perceivable.
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