Sodium Polymethacrylate
A polymer thickener and stabilizer. It thickens gels and creams and holds actives evenly. Inert to skin.
Supporting ingredient
It gives a product its texture, stability or shelf life. It has no claimed effect on the skin, so an efficacy tier does not apply. What is known about its safety is below
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
Sodium Polymethacrylate (INCI: Sodium Polymethacrylate) is a thickening and stabilizing polymer. It gives body to gels and creams, keeps actives evenly spread, and stops the formula from separating. This is a functional ingredient, not a skincare active. Its job is viscosity and stability, not an effect on skin. No treatment result should be expected from it. Because of its topical use and lack of meaningful systemic uptake, it can be used during pregnancy and breastfeeding without restriction. Tolerance is good. Irritation and allergy potential are both low, so it is comfortable on sensitive skin too. It is an inert material that most skin carries without a reaction.
Frequently asked questions
Is Sodium Polymethacrylate safe during pregnancy?
Sodium Polymethacrylate is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Sodium Polymethacrylate for?
Sodium Polymethacrylate suits: normal, dry, combination, oily, sensitive.
What is Sodium Polymethacrylate and what does it do in cosmetics?
A polymer thickener and stabilizer.
What's the INCI name for Sodium Polymethacrylate?
The INCI name is Sodium Polymethacrylate.
See Sodium Polymethacrylate in a product composition right on the store page
The Evigrade extension adds an evidence panel to iHerb, Sephora, Druni and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
Similar role in the formula
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