Potassium Carbomer

What is Potassium Carbomer?

Potassium Carbomer is a synthetic potassium salt derived from cross-linked polyacrylic acid, a high-molecular-weight polymer designed for personal care formulations. It excels in water-based systems, where it hydrates rapidly to form transparent, non-drooping gels without needing additional neutralizers. In cosmetics like moisturizers, serums, cleansers, and sunscreens, it acts by swelling in the presence of water and electrolytes, thereby increasing viscosity for optimal spreadability and suspension of active ingredients. This ingredient reinforces emulsion structures by building a robust network around oil droplets, preventing creaming or coalescence. Additionally, it deposits a flexible, breathable film on the skin, aiding in moisture retention and product adherence during application. Its versatility spans from low-viscosity sprays to thick creams, ensuring consistent performance across pH ranges typical in skincare.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Emulsion stabilizer
Improves emulsion robustness by preventing droplet coalescence and phase separation, often by thickening, structuring, or strengthening the interfacial layer.
Film former
Creates a continuous film on skin or hair to improve wear, water resistance, transfer resistance, shine, or hold in sunscreens, makeup, and styling products.
Viscosity controlling agent
Adjusts thickness to the desired level for stability and usability, improving dispensing, suspension, and texture across many formulation types.

Benefits

Delivers smooth, sensorial texture for comfortable product use.

Maintains emulsion integrity to avoid separation over time.

Supports lightweight films that enhance application and wear.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Users of gel-based or watery formulas needing stability.
Those with rare sensitivities to acrylic-based polymers.
Individuals preferring spreadable lotions and creams.
People avoiding synthetic thickeners entirely.
People seeking non-greasy textures in daily skincare.
Individuals preferring minimalist, ingredient-light products.

Safety Notes

  • Considered low hazard in cosmetic concentrations.
  • Non-comedogenic with minimal irritation potential.

Frequently Asked Questions about Potassium Carbomer

What does Potassium Carbomer do in products?

It thickens formulas, stabilizes emulsions, and forms protective films for better stability and feel.

Is Potassium Carbomer safe for skin?

Yes, it has a low safety rating and is widely used without irritation concerns.

Does it cause breakouts?

No, it has a comedogenic rating of zero, making it pore-friendly.