Science
Mechanism of Action
This ingredient functions by leveraging its long-chain stearyl groups to deliver emollient and lubricating effects to the skin, enhancing softness and smoothness. The citrate core provides mild plasticizing and stabilizing properties, which are crucial for improving the overall texture, consistency, and longevity of cosmetic and pharmaceutical formulations.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 Demonstrated excellent biocompatibility and low cytotoxicity in fibroblast and keratinocyte cultures, maintaining greater than 95% cell viability.
- 02 Showed a high safety margin with no signs of irritation, sensitization, or systemic toxicity.
- 03 Confirmed not to be an irritant or sensitizer on human skin.
Transparency
Dusting Analysis
As a formulation excipient and emollient, Tristearyl Citrate is not typically considered an 'active' ingredient for which dusting analysis (related to efficacy at high concentrations) would be relevant. Its primary function is to enhance product texture and stability.
The Formula
Formulation
Stability
Tristearyl Citrate is considered biologically inert and non-toxic, contributing to the improved stability of various cosmetic and pharmaceutical emulsions, including creams, lotions, and ointments.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel concluded Tristearyl Citrate is safe for use in cosmetics under current practices. It is also recognized as an FDA-approved indirect food additive, underscoring its favorable safety profile.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Tristearyl Citrate is a valuable excipient that enhances product feel and stability while offering skin-conditioning benefits, with a robust safety profile supported by extensive testing.
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References
Sources