Researched by Helena DeMaria-Williams
Formula IngredientViscosity Controller, Emulsion StabiliserSodium Polyacrylate
INCI: Sodium Polyacrylate
Sodium Polyacrylate is a superabsorbent synthetic polymer (sodium salt of polyacrylic acid) sometimes called 'waterlock' for its extraordinary water-binding capacity — it can absorb 100 to 1,000 times its own mass in water. In cosmetics, it functions as a viscosity controller, emulsion stabiliser, film former, and absorbent, thickening water-based formulas and maintaining stable emulsions.
Category
Viscosity Controller, Emulsion Stabiliser
Irritation Risk
Low
Skin Types
all skin types
What does this do in a formula?
viscosity control, emulsion stabilisation, water absorption, film forming, formula thickening, texture enhancement
Is Sodium Polyacrylate safe? Key considerations
Can Sodium Polyacrylate cause irritation?
Low RiskGenerally well tolerated at typical cosmetic concentrations. Large polymer molecules have negligible skin penetration. The CIR Expert Panel has assessed sodium polyacrylate as safe for cosmetic use. No EU CosIng Annex II or III restrictions apply.
Does Sodium Polyacrylate increase sun sensitivity?
No RiskDoes not increase photosensitivity. No sun protection precautions are required.
Is Sodium Polyacrylate safe during pregnancy?
SafeNo known pregnancy concerns. Large polymer molecule with negligible skin penetration and no systemic activity.
How does Sodium Polyacrylate work?
Sodium Polyacrylate is a superabsorbent synthetic polymer (sodium salt of polyacrylic acid) sometimes called 'waterlock' for its extraordinary water-binding capacity — it can absorb 100 to 1,000 times its own mass in water. In cosmetics, it functions as a viscosity controller, emulsion stabiliser, film former, and absorbent, thickening water-based formulas and maintaining stable emulsions.
Which products contain Sodium Polyacrylate?
Shop products that contain Sodium Polyacrylate
