Lexgard® O Natural MB (INCI: Caprylyl Glycol) is a 100% natural, readily biodegradable multifunctional ingredient derived from sustainable palm feedstock. This high-purity medium-chain terminal diol (1,2-octanediol) is a cornerstone of “natural” preservation strategies.
Key Benefits and Performance
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Bacteriostatic Power: Functions as a potent bacteriostatic agent, creating an environment that inhibits the growth of both Gram-positive and Gram-negative bacteria.
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Preservation Boosting: Its amphiphilic structure allows it to disrupt microbial cell membranes, significantly increasing the efficacy of other preservatives and allowing for lower overall dosage levels.
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Skin Conditioning: Acts as a high-performance humectant and emollient, providing immediate skin-conditioning benefits and improving the “slip” and spreadability of emulsions.
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Multifunctional Efficiency: Streamlines the INCI list by providing humectancy, emolliency, and microbial control in a single molecule.
Formulation Guidelines
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Preservation Strategy: While highly effective against bacteria, it has limited activity against yeast and mould. For full broad-spectrum protection, it must be combined with a dedicated antifungal agent (e.g., Caprylhydroxamic Acid).
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Compatibility: Stable across a wide pH range and compatible with most cosmetic raw materials, including anionic, cationic, and non-ionic surfactants.
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Incorporation: Can be added to the water phase or during the cooling phase of an emulsion. In cold-process formulations, it may require slight warming or pre-mixing with other glycols to ensure complete dissolution.