Sensicare® M 4200 (INCI: Gluconolactone, Sodium Benzoate, Calcium Gluconate) is a 100% natural, broad-spectrum antimicrobial powder. By combining a Polyhydroxy Acid (PHA) with a nature-identical organic acid salt, this multifunctional additive provides robust preservation while simultaneously improving skin hydration. It is the “clean-label” standard for formulators seeking compliance with the strictest environmental certifications.
Key Benefits and Performance
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True Broad-Spectrum Mastery: Sensicare® M 4200 delivers proven efficacy across all major microbial categories:
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Gram-negative bacteria: Including E. coli, Pseudomonas aeruginosa, and Salmonella.
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Gram-positive bacteria: Including Staphylococcus aureus.
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Fungi & Yeasts: Strong protection against Aspergillus niger and Candida albicans.
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Multifunctional “Skin-Care” Preservation:
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Moisturization: Gluconolactone acts as a humectant, significantly improving the moisture content of the skin.
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Anti-Ageing: As a PHA, it provides gentle exfoliation and antioxidant benefits without the irritation associated with AHAs.
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Binding Agent: In decorative cosmetics, it functions as an effective binder for compact powders.
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Invisible Protection: As a white, water-soluble powder, it does not alter the scent, color, or transparency of the finished product, making it ideal for crystal-clear gels and high-end serums.
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Thermal Stability: It maintains its integrity even at high processing temperatures, offering more flexibility than liquid organic acid blends.
Formulation Guidelines
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The “pH Drift” Strategy: Gluconolactone slowly hydrolyzes into gluconic acid in water, which can cause a gradual drop in pH over time.
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Buffering: It is critical to monitor pH stability; if a drop occurs, the system should be buffered using Sodium Lactate/Lactic Acid or Sodium Citrate/Citric Acid.
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