Polyglycerin-20 is a glycerol-derived, highly hydrophilic polyol used as a functional ingredient in cosmetic and personal-care formulations. It belongs to the polyglycerin family and is primarily associated with humectant functionality, helping formulations attract and retain water.
The high number of hydroxyl groups associated with higher-polyglycerin materials contributes to their strong water affinity. Polyglycerin-20 may therefore be considered for hydration-focused skincare, personal-care and selected hair-care formulations where a water-binding polyol is required.
Commercial Polyglycerin-20 should be evaluated according to the exact product grade because polyglycerin materials can contain a distribution of polymerization levels rather than consisting exclusively of one perfectly defined molecular species. Parameters such as molecular-weight distribution, viscosity, hydroxyl value, water content and color can therefore vary by grade.
Polyglycerin-20 is a glycerol-derived polyglycerin associated nominally with approximately twenty glycerol-derived units. Its structure contains numerous hydroxyl groups, giving the material a strongly hydrophilic character.
The number 20 represents the nominal degree of glycerol-derived polymerization. It should not automatically be interpreted as a single molecular formula or exact molecular weight for every commercial product sold under this designation.
Polyglycerin-20 is used where the formulation requires a highly water-compatible polyol with humectant and moisturizing-support properties.
It is important to distinguish Polyglycerin-20 from Polyglyceryl-20. These names refer to different ingredient categories: Polyglycerin-20 is the glycerol-derived polyol, while Polyglyceryl-20 generally refers to an esterified polyglycerol ingredient.
Polyglycerin-20 has numerous hydroxyl groups capable of interacting with water. This makes it suitable for formulations where water-binding and hydration support are desired.
As a hydrophilic polyol, Polyglycerin-20 can contribute to the moisturizing profile of skincare and personal-care formulations. It can be combined with other humectants, emollients and conditioning agents to create balanced hydration systems.
Polyglycerin-20 can contribute to the sensory and conditioning characteristics of cosmetic formulations. Its performance depends on concentration, grade and the surrounding formulation system.
Its strong affinity for water can make Polyglycerin-20 useful in aqueous and water-containing formulation systems. Compatibility should be established through formulation testing.
Polyglycerin-20 may be considered for:
The appropriate use level should be determined through formulation development, sensory testing and compatibility evaluation.
Polyglycerin-20 is highly hydrophilic and is suitable for many water-containing formulation systems.
Higher-polyglycerin materials can have significant viscosity. The actual viscosity depends on molecular distribution, concentration and temperature, so the current product-grade specification should be consulted.
The appropriate concentration depends on the intended cosmetic function, formulation architecture and desired sensory properties.
Commercial Polyglycerin-20 may contain a distribution of glycerol-derived oligomers. Therefore, molecular weight should not be treated as one fixed universal value.
The pH of the finished formulation should be evaluated based on the complete ingredient system rather than the ingredient alone.
Compatibility with surfactants, electrolytes, polymers, botanical ingredients, active cosmetic ingredients and other polyols should be evaluated during formulation development.
Polyglycerin-20 should not be considered a complete preservation system. The finished formulation should have an appropriate preservation strategy where required.
Store in a tightly closed container under the storage conditions recommended for the applicable commercial grade.
Swapnroop supplies cosmetic ingredients for manufacturers and formulation companies developing personal-care and cosmetic products. Polyglycerin-20 can be considered for applications requiring a glycerol-derived, highly hydrophilic polyol with humectant and moisturizing-support characteristics.
For commercial procurement, the exact grade, specification, packaging, batch COA, technical documentation and intended formulation application should be evaluated before use.
Polyglycerin-20 is a glycerol-derived polyglycerin used primarily as a humectant in cosmetic and personal-care formulations.
Its primary cosmetic function is humectancy, supporting water retention and hydration in cosmetic formulations.
Yes. It can be considered for moisturizers, serums, lotions, gels and other hydration-focused skincare formulations.
Yes. It may be evaluated in selected hair-care and conditioning formulations where moisture-support properties are desired.
No. Polyglycerin-20 is a glycerol-derived polyol, whereas Polyglyceryl-20 generally refers to an esterified polyglycerol ingredient.
Not necessarily. Commercial polyglycerin materials may have molecular-weight distributions. The exact value should be confirmed from the specification of the supplied grade.
It should not be treated as a complete preservation system. Finished cosmetic formulations require an appropriate preservation strategy where applicable.
| Parameter | Specification |
|---|---|
| Appearance | Colourless to light-yellow liquid or oily liquid |