Science
Mechanism of Action
As a member of the crosspolymer family, POLYUREA CROSSPOLYMER-7 is anticipated to create a durable, non-occlusive film on the skin's surface, offering protection and enhancing the sensory experience of a product. Beyond film formation, its polymeric structure allows it to function as a rheology modifier, increasing product viscosity (thickener), stabilizing immiscible phases (emulsifier), and improving overall texture. It may also aid in skin conditioning by supporting water retention. Related forms, like Polyurea Crosspolymer-1, are noted for absorbent and mattifying effects.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Polyurea systems are known for high thermal stability. For related polymers, stability is noted in a pH range of 7 to 11, specifically not below pH 7.32.
Conflicts
- Formulators should be cautious when combining multiple solutions that may introduce a significant concentration of sensitizers, such as methylisothiazolinone (MI), particularly if the polyurea polymer is supplied in an emulsion or solution containing other chemicals.
Safety
Safety Profile
There is no specific safety assessment from CIR, SCCS, or FDA directly for POLYUREA CROSSPOLYMER-7. However, related ingredients like Polyacrylate Crosspolymer-6 have been deemed safe for cosmetic use when formulated to be non-irritating. The CIR Expert Panel has also concluded that polyurethanes, as a class, are safe in cosmetic uses and concentrations when formulated to be non-sensitizing and provided there are no detectable residual isocyanate monomers.
Your Skin
Skin Compatibility
Our Assessment
Verdict
POLYUREA CROSSPOLYMER-7 is a functionally valuable ingredient, primarily serving as a film-former and texture enhancer in skincare formulations, though specific clinical efficacy and safety data for this particular variant are currently limited.
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