Science
Mechanism of Action
This copolymer operates primarily by forming a thin, continuous layer on the stratum corneum, creating a physical barrier. This film helps to mitigate transepidermal water loss, thereby locking in moisture and providing protection against external environmental aggressors. Additionally, it acts as a plasticizer, contributing to the smooth application and feel of formulations, and exhibits antistatic effects.
Research
Clinical Evidence
Low confidenceN/A
Key findings
- 01 Formulations containing 2% Acrylates/Vinyl Neodecanoate Crosspolymer did not induce dermal irritation or sensitization.
Transparency
Dusting Analysis
No data available to suggest dusting concerns for this ingredient.
The Formula
Formulation
Stability
The copolymer is soluble in aqueous systems upon neutralization and exhibits increased solubility in polar solvents. An acid content ranging from 3% to 14% facilitates solubility in slightly alkaline conditions. For optimal stability, tin-soldered containers are recommended, as lead-soldered containers may lead to insolubilization over extended storage. The presence of vinyl neodecanoate enhances resistance to alkaline conditions and water.
Conflicts
- Cationic ingredients (due to its anionic nature)
- Lead-soldered containers (for long-term storage)
Safety
Safety Profile
The CIR Expert Panel deems acrylate copolymers safe for cosmetic use when formulated to prevent irritation. While a related ingredient, Acrylates/VA Copolymer, has been associated with moderate to severe reversible dermal irritation, this specific copolymer at 2% has shown no irritation or sensitization. The maximum reported concentration for general Acrylates Copolymer in leave-on products with dermal exposure is 25%.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This copolymer is a valuable ingredient for enhancing skin protection and moisture retention due to its effective film-forming and plasticizing properties, with a low risk of irritation at typical concentrations.
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