Science
Mechanism of Action
As a high HLB (Hydrophilic-Lipophilic Balance) molecule, Ceteareth-22 functions by bridging the gap between oil and water phases, significantly reducing interfacial tension. Its dual-natured molecular structure—comprising a water-loving polyethylene glycol chain and an oil-loving fatty alcohol chain—allows it to stabilize oil-in-water emulsions while simultaneously acting as a mild cleansing agent that lift away surface impurities.
Research
Clinical Evidence
High confidence5%
Key findings
- 01 In repeat-insult patch tests (HRIPT) of related ethoxylated alcohols, concentrations up to 1.35% showed no evidence of sensitization or significant irritation.
- 02 In vitro analysis using human lymphocytes demonstrated a lack of cytotoxic effects at concentrations ranging from 1% to 50%, confirming a high threshold for cellular safety.
Transparency
Dusting Analysis
As a functional ingredient rather than a primary bioactive, Ceteareth-22 is rarely 'dusted' for marketing purposes; it is typically utilized at the precise concentrations required to achieve emulsion stability and viscosity.
The Formula
Formulation
Stability
Exhibits exceptional stability across an expansive pH range and maintains integrity in electrolyte-rich environments. It functions effectively as a protective colloid.
Synergies
- Glyceryl Stearate
- Low HLB Emulsifiers
- Lipophilic Fatty Alcohols
Conflicts
- Strong oxidizing agents
- Highly anionic thickeners
Safety
Safety Profile
Safe for general cosmetic application; however, formulations containing this ingredient should not be applied to severely damaged or burned skin due to potential systemic absorption concerns related to the PEG component.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A robust and reliable emulsifying agent essential for creating stable, high-viscosity skincare textures across a wide range of acidic and alkaline environments.
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References
Sources