Sorbitol LGK is a non-crystallising solution of sorbitol (E420), belonging to the group of sugar alcohols (polyols), used as a functional ingredient in cosmetics, pharmaceuticals, nutraceuticals and selected food applications. The raw material is a clear, colourless liquid with a dry matter content of ≥80% and pH in the range of 5.0 – 7.5, which ensures wide formulation compatibility and stable behaviour in aqueous and aqueous-alcoholic systems.
Chemical composition and origin of raw material
Chemically Sorbitol LGK is a solution of hydrogenated starch hydrolysates obtained in a two- stage technological process.
In the first stage, plant starch undergoes enzymatic hydrolysis, resulting in a mixture of simple sugars and oligosaccharides. The resulting hydrolysate is then subjected to catalytic hydrogenation, in which reducing sugars are converted into sugar alcohols (polyols), including sorbitol.
The raw material is plant-based, bio-based, GMO-free, and contains no preservatives or solvents. It meets the requirements of the Ph. Eur. and USP/NF pharmacopoeias, allowing its use in products with increased quality and regulatory requirements.
Stability and physicochemical properties
A key feature of LGK sorbitol is its very low tendency to crystallize, which is important in formulations such as syrups, oral solutions, gels, emulsions, and alcohol-based preparations. The raw material exhibits high chemical and thermal stability – it remains stable up to approximately 180°C, maintains stability over a wide pH range, and does not undergo the Maillard reaction (browning), which is particularly important in technological processes requiring elevated temperatures or long storage periods.
Thanks to its good water solubility and hygroscopic properties, LGK sorbitol effectively reduces the drying of formulations and stabilizes their parameters over time. At higher concentrations, it also exhibits a preservative effect, supporting the microbiological stability of the final products.
Technological functions of LGK Sorbitol
Functionally, LGK sorbitol plays several roles simultaneously: it acts as a humectant providing long-lasting hydration, a consistency and texture promoter, and a protective ingredient improving the homogeneity of formulations.
It gives products a smooth, creamy texture and rich feel, without stickiness. It also exhibits the ability to chelate metal ions, which can improve the oxidative stability of systems containing a lipid phase. Its neutral sensory profile, delicate sweetness, and lack of intense odour facilitate its wide use in various types of formulations.
Application in cosmetics
In cosmetics, LGK sorbitol is used, among others, in creams, balms, gels, as well as in products for sensitive skin and children, where mildness and good skin tolerance are essential. In oral hygiene products such as toothpastes and mouthwashes, it serves as a non-cariogenic ingredient, supporting tooth protection against caries and enhancing the comfort of use.
Application in pharmaceuticals and nutraceuticals
In pharmaceuticals and nutraceuticals, LGK sorbitol is used in syrups, emulsions, and oral preparations as a carrier, excipient, and flavour-enhancing agent. As a sugar-free and non-cariogenic ingredient, it is also widely applied in dental and pediatric products. With a caloric value of approximately 2.4 kcal/g, it enables the formulation of reduced-energy products.
Additional functional properties
An additional advantage of LGK sorbitol is its ability to chelate metal ions (which can support the oxidative stability of formulations) as well as its compatibility with lipid systems, contributing to the physicochemical stability of emulsions. Its neutral sweetness and lack of a strong odour profile facilitate its wide use across a wide variety of formulation types.
