dermofeel® 250 eco (INCI: Phenylpropanol) is a 100% naturally derived aromatic alcohol. Found widely across the plant kingdom, this clear, colorless liquid is a nature-identical multifunctional ingredient. It is a strategic choice for formulators who need to combine a delicate, hyacinth-like fragrance with robust, pH-independent antimicrobial boosting. Because its mechanism is physical rather than chemical, it offers a major advantage: it remains fully effective across the entire cosmetic pH range.
Key Benefits and Performance
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pH-Independent Antimicrobial Activity: Unlike organic acids, its efficacy eco is not restricted to acidic environments. It remains active at neutral or even alkaline pH, providing critical flexibility for high-pH formulations.
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Targeted “Hurdle” Synergy: It is rated “strong” against Gram-negative bacteria and moulds. This makes it the perfect partner for other natural preservatives that may be strong against Gram-positive bacteria but weaker against these specific contaminants.
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Fragrance & Solvating Properties: It contributes a gentle, hyacinth-like scent and acts as a natural solvent for other fragrance components. When paired with a wetting agent like dermosoft® Pentiol eco, it can reduce or eliminate the need for additional synthetic solubilizers.
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Temperature Stability: As a temperature-stable liquid, it is easy to handle in a manufacturing environment and can withstand the high temperatures required for hot-process emulsions.
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Broad Compatibility: It is a versatile “team player” that exhibits excellent synergistic activity when combined with surface-active antimicrobials (such as dermosoft® GMCY MB).
Formulation Guidelines
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Primary Functions: Antimicrobial booster, fragrance ingredient, and solvent.
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Solubility & Incorporation:
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Water Solubility: Clear in water only up to 0.1% at room temperature; a solubilizer is required for higher concentrations in aqueous systems.
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Processing: Can be added to either the oil phase or the water phase at any stage of manufacturing.
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Antimicrobial Strategy: Strong against Gram-negatives and mould. For full-spectrum protection, pair with co-actives strong against Gram-positive bacteria and yeast.
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Usage Constraints: * Not Suitable: For eye care products or formulations specifically targeting hypersensitive skin.
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Surfactant Note: Efficacy may be reduced in surfactant-based systems (shampoos/cleansers) due to micellar inclusion, where the active becomes trapped inside surfactant micelles.
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