Science
Mechanism of Action
This ingredient functions by significantly lowering the interfacial tension between immiscible phases, such as oil and water. Its hydrophilic segments interact with water while its lipophilic pentaisostearate chains associate with oil, effectively solubilizing oil-based components, dirt, and impurities, allowing them to be rinsed away in cleansing applications.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Similar polyethoxylated sorbitan esters, such as Polysorbate 40, are recognized for their resilience against hard water and electrolytes. They exhibit broad pH stability, being suitable for use in both acidic and basic formulations.
Safety
Safety Profile
Sorbeth-40 Pentaisostearate has not been individually assessed by the Cosmetic Ingredient Review (CIR) Expert Panel. However, it belongs to a broader group of polyethoxylated sorbitan or sorbitol esters, which have generally been considered safe for cosmetic use by the CIR in group assessments from 1985 and 2002. No specific SCCS or FDA regulatory status for this exact ingredient has been identified.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Sorbeth-40 Pentaisostearate is a valuable formulating agent for its robust emulsifying and solubilizing properties across a wide array of water-based systems, with the ingredient class generally considered safe, though specific individual review is currently pending.
Related
Similar Ingredients
Finding similar ingredients…
References
Sources