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PEG-6 SORBITAN STEARATE.

Valuable CAS 9005-67-8 / SURFACTANT - EMULSIFYING

PEG-6 Sorbitan Stearate is a hydrophilic, nonionic surfactant and emulsifying agent. It plays a critical role in stabilizing formulations by facilitating the blend of oil and water phases, improving overall texture and consistency of skincare products.

Summary

emulsifying solubilizing surfactant cleansing

Science

Mechanism of Action

This ingredient functions by significantly lowering the surface tension between disparate substances, enabling the formation and stabilization of emulsions. As a solubilizer, it helps disperse other compounds that would typically not dissolve in a given solvent. Furthermore, its surfactant properties assist in cleansing by allowing oil and dirt to mix with water, making them easier to rinse away from skin and hair.

Research

Clinical Evidence

High confidence
Effective range ≤25%
Optimal

N/A

Key findings

  1. 01 The CIR Expert Panel determined that PEG Sorbitan/Sorbitol Fatty Acid Esters, including PEG-6 Sorbitan Stearate, are safe for cosmetic use at concentrations up to 25%, with the advisory against application on damaged skin.
  2. 02 Clinical evaluations of related PEG Stearates demonstrated no irritant or sensitizing effects at concentrations up to 25% or higher.
  3. 03 Similar ingredients, PEG-6 and -20 Sorbitan Beeswax, showed only minimal irritation and were classified as nonsensitizers in clinical tests at concentrations up to 3%.

Transparency

Dusting Analysis

Not commonly dusted

No data available to suggest PEG-6 Sorbitan Stearate is commonly associated with dusting, which typically refers to visible residue on the skin surface.

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

PEG-6 Sorbitan Stearate is a hydrophilic, nonionic surfactant with an HLB value of 9.5, indicating water solubility and dispersibility. It is essential for blending water and oil phases, enhancing texture, consistency, and stability in formulations. For optimal incorporation, it is typically added to the hot oil phase and heated to approximately 80°C (176°F).

Synergies

  • Polysorbate 60 (for stable oil-in-water emulsions)

Safety

Safety Profile

CIR Status
Safe as used
Max tested
25%
Sensitization risk Low

The CIR Expert Panel has deemed PEG Sorbitan/Sorbitol Fatty Acid Esters, encompassing PEG-6 Sorbitan Stearate, safe for use in cosmetics at concentrations not exceeding 25%. A crucial caveat advises against its use on damaged skin. Minor traces of 1,4-dioxane, a processing byproduct, may be present but are rigorously controlled through purification processes. When plant-derived, it is acceptable in European cosmetic formulations under general provisions. The ingredient is listed by the FDA with a Unique Ingredient Identifier (UNII).

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
No Sensitive
Irritancy Low
Comedogenicity Unknown

Our Assessment

Verdict

Valuable

PEG-6 Sorbitan Stearate is a valuable ingredient for emulsion stability and product texture, deemed safe for cosmetic use up to 25% concentration, with low sensitization risk, making it a reliable choice for diverse formulations.

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