Pick Your Polymer

  • August 2, 2022
  • 3 mins of read time

Pick Your Polymer

Seppic’s polymers are well known for their ability to thicken and stabilize formulations, even with a high content of oils in cream gels, in order to be easy-to-use and to create enjoyable textures for the consumers!

Since the launch of the iconic Sepigel 305™, the range has extended significantly to offer a variety of skin feel, performances, natural content,...

Let’s go over all your options

The form: liquid, concentrated or powder?

Seppic’s liquid polymers are obtained by inverse emulsion polymerization technology. Read more about our polymerization technologies here.

They come in a water-in-oil emulsion form, where the polymer is trapped into water droplets. During the formulation process, a spontaneous phase inversion happens when the water is added, leading to an oil-in-water emulsion where the polymer swells and can thicken and stabilize the formulation.

No need for neutralization, high shear nor surfactant, the polymers are easy to use and cold processable if needed !

inverse emulsion polymer

In the range, discover Seppic classic liquid grades : SepigelTM, SimulgelTM & SepilifeTM and the concentrated liquid grades, effective from low dosage : SepiplusTM.

Seppic’s powder polymers are concentrated, and therefore effective from a low dosage. They can create translucent or even transparent gels due to their reduced (or absent) oil content. They can also be used in cold process if wanted.

The SepinovTM range comes from the inverse emulsion polymerisation technology above followed by a drying step while SepimaxTM range is obtained by precipitation polymerization technology, creating high performance polymers.

polymer obtained by precipitation

Texture & sensoriality

Seppic has a polymer proposal for all your textures and skin feel:

  • A wide range of textures, from fluid to compact formulas
  • Various sensory from rich and long-lasting comfort to quick-break & nude skin feel
  • Some with quick-break effect for a fresh and melting skin feel
  • Non stringy and non sticky textures

Don’t hesitate to ask us to help you find the right one depending on the product you want to create. We have a sensoriality mapping of our polymers to guide you.

Technical performance

All Seppic polymers have been evaluated for their multifunctional performance (thickening, emulsifying-stabilizing, texturizing), tested over a wide pH range, with different types of oils. They have demonstrated good compatibility with solvents, mineral filters and screens, color pigments, …

Seppic has identified the most performing grades for specific properties needed in formulation such as:

  • Sprayability
  • Wipe formulations
  • Oil stabilizing performance (without emulsifier)
  • Extreme pH
  • Perfect transparency
  • Particles, glitters, oil suspension
  • Resistance to stressful ingredients (electrolytes, hydrogen peroxide, acidic ingredients ...)

Compatibility with DHA, hydrogen peroxide, inorganic sunscreens, hydrophilic pigments

What about sustainability ?

Seppic provides the naturality index according to the ISO 16128 norm for all its polymers. SepilifeTM Nude is the grade presenting the highest naturality. Need for 100% naturality? Discover our SolagumTM range, natural thickeners that are performant and will improve the texture and skin feel of natural personal care products.

Think energy saving ! Our polymers are cold processable and will help to reduce energy consumption and manufacturing time compared to classical hot-process. An ecological gesture for the planet !


Seppic proposes a large range of polymeric thickeners and stabilizers to offer formulators unique performance and infinite sensory experiences. A wide range of ingredients and solutions to design the cosmetics of tomorrow.