Fructooligosaccharides (FOS) are short-chain carbohydrates composed primarily of fructose units, often with a terminal glucose unit. They are naturally present in foods such as chicory, onions, garlic and certain other plants and can also be produced through controlled enzymatic conversion of sucrose.
In cosmetics, Fructooligosaccharides are considered a specialty cosmetic ingredient for skin-conditioning and formulation applications. Their carbohydrate structure provides water-compatible characteristics, making them relevant to moisturizing and skin-feel formulations.
FOS is not a single pure molecular substance. It generally represents a mixture of oligosaccharides with different chain lengths, such as 1-kestose, nystose and longer fructan fractions. Therefore, commercial specifications can vary considerably according to source, production method and degree of polymerization.
Fructooligosaccharides are commonly identified by CAS Number 308066-66-2, although CAS identifiers can vary according to the specific FOS material or composition. The ingredient is also described as Fructo-oligosaccharides, Fructooligosaccharide and FOS.
The principal structures contain β-(2→1)-linked fructofuranosyl units. Commercial FOS materials may contain different proportions of sucrose, 1-kestose, nystose and higher fructooligosaccharides.
Because FOS is a mixture of carbohydrate oligomers, there is no single molecular formula or molecular weight applicable to every commercial grade. Individual components have defined molecular weights, while the commercial material is characterized by its overall carbohydrate profile and degree of polymerization.
For cosmetic raw-material control, the exact botanical or enzymatic source, total FOS content, individual oligosaccharide profile, moisture, ash and microbiological quality should be defined for the selected grade.
Fructooligosaccharides can contribute to skin-conditioning and moisture-management formulations because of their hydrophilic carbohydrate structure.
Their water-compatible nature makes them suitable for aqueous cosmetic systems where carbohydrate-based ingredients are incorporated alongside conventional humectants and moisturizing materials.
FOS can be used with ingredients such as Glycerin, Sorbitol, Sodium PCA, Sodium Lactate, Beta-Glucan, Sodium Hyaluronate and other skin-conditioning ingredients.
Because Fructooligosaccharides consist of relatively short carbohydrate chains rather than a high-molecular-weight polymer, their formulation behavior differs from ingredients such as Xanthan Gum, Guar Gum, Pullulan and Polyglutamic Acid.
Fructooligosaccharides can be evaluated in a variety of skin-care, facial-care and personal-care formulations.
Potential applications include moisturizing creams, lotions, facial serums, essences, gels, masks and other water-containing cosmetic products.
They can be incorporated into aqueous phases and combined with other carbohydrate-derived ingredients. FOS may be particularly relevant to formulations designed around plant-derived or carbohydrate-based cosmetic raw materials.
The selected grade should be evaluated according to its total FOS content, individual oligosaccharide distribution, solids concentration, pH, moisture and microbiological characteristics.
Fructooligosaccharides are generally water-compatible, but commercial grades may be supplied either as powders or as concentrated aqueous solutions. The physical form should therefore be considered when calculating formulation quantities.
Because FOS is a mixture, Assay (HPLC) should not be represented by an arbitrary single percentage. High-performance liquid chromatography can be used for carbohydrate profiling and determination of individual oligosaccharides when a validated method is available, but the applicable assay depends on the commercial grade and analytical method.
The degree of polymerization and individual sugar composition can influence the material's physical characteristics. Moisture and storage conditions should also be controlled because carbohydrate-rich materials can be hygroscopic.
Formulators should evaluate pH stability, compatibility with preservatives and other water-soluble ingredients, and microbiological quality during product development.
Fructooligosaccharides are a specialty cosmetic ingredient for manufacturers developing carbohydrate-based, moisturizing and skin-conditioning formulations.
For B2B sourcing, important quality parameters include total FOS content, individual oligosaccharide profile, degree of polymerization, moisture, ash, pH, appearance, solubility and microbiological quality.
As a Fructooligosaccharides Cosmetic Ingredient Manufacturer in India, the ingredient can support bulk cosmetic raw-material requirements for skin-care, facial-care and personal-care manufacturers.
| Parameter | Specification |
|---|---|
| Appearance | White or colourless crystals / white powder |