Humectant
SODIUM HYALURONATE CROSSPOLYMER-4
Safety score · 0–100
Excellent
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A BDDE cross-linked hyaluronic acid — same hydration superpower as classic HA but more resistant to enzymatic breakdown for longer-lasting plumping. Excellent safety profile; trace cross-linker residues are tightly controlled.
Function
Skin benefits
- BDDE-cross-linked HA for sustained hydration
- Plumps fine lines visibly
- Forms a flexible moisture-binding network
Known concerns
- Trace residual cross-linker (BDDE) at very low ppm in well-purified grades
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related humectants
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.