Verstatil® TBG MB (INCI: Triethyl Citrate, Glyceryl Caprylate, Benzoic Acid) is a high-performance, multifunctional preservative blend. This synergistic system is built on a “Green Solvent” framework where Triethyl Citrate solubilizes and delivers two powerful actives: Glyceryl Caprylate (an antimicrobial wetting agent) and Benzoic Acid (a globally recognized preservative). This combination provides a robust defense while maintaining a clean-label profile suitable for modern natural cosmetics.
Key Benefits and Performance
-
Synergistic Hurdle System: The blend leverages the different modes of action of its three components to deliver a strong defense against both Gram-positive and Gram-negative bacteria.
-
Multifunctional Wetting: The Glyceryl Caprylate component acts as an antimicrobial wetting agent, lowering surface tension and improving the distribution of the preservative throughout the formula.
-
Green Solvent Delivery: Triethyl Citrate acts as a bio-based carrier that ensures the organic acid remains stable and effective, even in complex oil-in-water systems.
-
Manufacturing Versatility: Supplied as a clear, odorless liquid, it is both hot and cold processable. It can be added to either the oil phase or the water phase at any stage of the manufacturing process.
-
Sensitive Skin Optimization: It is specifically positioned for high-tolerance applications, such as facial care and baby products (at concentrations below 1.0%).
Formulation Guidelines
-
The “pH Constraint”: Like all benzoic acid-based systems, its efficacy is pH-dependent.
-
Solubility & Incorporation: While it can be added to either phase in emulsions, a solubilizer is required for successful incorporation into purely aqueous or transparent systems.
-
Usage Restrictions: * Recommended: Baby face care and adult facial applications (<1.0%).
-
Not Recommended: Baby diaper care, intimate care products, or spray/aerosol applications.
-
-
Fungal Defense: While it has good activity against mould, it is best combined with a dedicated fungicidal co-active for total broad-spectrum security in high-risk formulations.
