Range of preservatives and antimicrobial additives designed to protect cosmetic formulations against microbial spoilage. The STELLAGUARD portfolio covers all preservation approaches: synergistic blends, paraben-free systems, multifunctional solutions, and Ecocert/COSMOS compatible references. Each system is selected based on pH, matrix, and regulatory constraints, with technical support including microbiological challenge tests.
Plant-based (1,4-dioxane-free)
Stellaguard PB81F is a glycerol-derived diol produced through the fermentation of plant-based sugars from renewable, non-GMO sources
A versatile ingredient for the cosmetics industry, it offers superior performance compared to petroleum-based glycols
Its manufacturing process guarantees the absence of 1,4-dioxane
Preservation booster
Humectant
Emollient
Texture/sensoriality agent
Synthetic origin
Stellaguard PB225 is a modified ether derived from plant-based glycerol that enhances the efficacy of preservative agents.
A multifunctional ingredient, it can be combined with active preservatives to boost their efficacy and reduce their concentration, resulting in safer and milder formulations.
Preservation booster
Emollient
Preservative
Synthetic origin
Stellaguard PB200 is a versatile preservative widely used in personal care product formulations
It offers a broad and balanced spectrum of activity against bacteria, yeasts, molds, and fungi
Usage concentrations vary depending on the type of formulation and the other ingredients present
Preservative Booster
Effective against bacteria, yeast, mold, and fungi
Synthetic origin
Stellaguard PB125 is an aliphatic diol used as a solvent in cosmetic products. It can also enhance the action of surfactants or serve as a preservative.
It also acts as a skin-conditioning agent, helping to keep the skin healthy.
Preservation booster
Humectant
Co-emulsifier