Optiphen™ is a liquid preservative blend composed of Phenoxyethanol and Caprylyl Glycol, developed for broad-spectrum preservation in cosmetic and personal care formulations. In these systems, Phenoxyethanol serves as the primary antimicrobial agent, while Caprylyl Glycol functions as a preservative booster that broadens antimicrobial performance and also imparts emollient properties. Together, these blends provide effective protection against product-damaging bacteria, yeast, and fungi across a wide pH range of 4 to 8.
This preservative system is valued for its broad formulation compatibility, ease of handling, and stability during manufacturing processes up to 80 °C. They are compatible with many skin care and hair care systems, including emulsions, cleansing products, wipes, and other aqueous or surfactant-based formulations. In addition to antimicrobial efficacy, they do not contribute color or odor to the finished product, which supports their use in aesthetically sensitive applications. They also align with preservative trends favoring non-paraben, non-formaldehyde donor, and non-isothiazolinone systems. In skin care applications, the raw material can help protect formulations such as creams, lotions, moisturizers, sunscreens, body washes, liquid soaps, foundations, wipes, and baby care products.
Quick Insights
Ingredient Rating:
GOOD
Type of Ingredient:
Texture Enhancer and Preservative
Intended Function:
To inhibit microbial growth in cosmetic formulations and help maintain product safety and integrity.
Common Applications:
To inhibit microbial growth in cosmetic formulations and help maintain product safety and integrity.
Target Audience:
Formulators and brands creating safe, stable skincare and haircare products seeking paraben- and formaldehyde-free preservation solutions suitable for a wide range of textures and application types.
Also Known As:
Phenoxyethanol and Caprylyl Glycol.
Safety Analysis
Optiphen is widely regarded as safe when used within recommended concentrations (typically 0.5 – 1.5% of the finished product). Phenoxyethanol, the primary antimicrobial in Optiphen, is used globally as a preservative alternative to formaldehyde donors and parabens with restrictions in some regions (e.g., EU limits around 1%). Its inclusion in cosmetic products requires careful pH and formulation control. Some individuals with highly sensitive skin may experience irritation, particularly at higher usage levels, and patch testing is advised during product development. Although consumer concern occasionally appears around phenoxyethanol, regulatory assessments continue to affirm its safety in properly preserved products.
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