Cold process emulsifier

The cold process emulsifier course posts will be under this category.

Formulating Friday cold process emulsifier series: Sepigel™ 305 and Sepiplus 400 – cream becomes body butter with solid oils and butters (part three)

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Welcome to part three of this series/course which we’re creating formulas using Sepigel 305 or Sepiplus 400! These awesome, liquid, cold process, non-ionic emulsifiers can make emulsions, gels, and gel-creams in less than 10 minutes using low/no shear mixing! Woo hoo! We met Sepigel 305™ (INCI: Polyacrylamide (and) C13-14 Isoparaffin (and) Laureth-7) – cold process...

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Formulating Friday cold process emulsifier series: Sepigel™ 305 and Sepiplus 400 (part two)

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A beaker sits on a digital scale with a white lotion in it. There's a container with a powder, Penstia powder, and a hand held immersion bender beside it.

Welcome to part two of this new series in which we’ll be making formulas using Sepigel 305 or Sepiplus 400! These awesome, liquid, cold process, non-ionic emulsifiers can make emulsions, gels, and gel-creams in less than 10 minutes using low/no shear mixing! Woo hoo! In this post, we’re comparing and contrasting these emulsifiers, then we’ll...

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Formulating Friday cold process emulsifier series: Sepigel™ 305 and Sepiplus 400 (part one) – profile of Sepiplus 400

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A shot glass filled with a white, opaque, thicker liquid stands beside a bottle. The liquid is Sepiplus 400, a cold process liquid emulsifier.

Welcome to part one of this new series in which we’ll be making formulas using Sepigel 305 or Sepiplus 400! These awesome, liquid, cold process, non-ionic emulsifiers can make emulsions, gels, and gel-creams in less than 10 minutes using low/no shear mixing! Woo hoo! We met Sepigel 305™ (INCI: Polyacrylamide (and) C13-14 Isoparaffin (and) Laureth-7)...

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Formulating Friday cold process emulsifier series: SEPILIFE™ NUDE and SIMULGEL™️ EG – creating an awesome facial moisturizer with actives (part 9)

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Two bottles

Welcome back to this series, which I think is the last part before we start the new series in January for Sepigel 305 or Sepiplus 400? If you’d like to see another post with a wrap-up or to ask questions or to share your formulas, let me know in the comments or email me at...

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Formulating Friday cold process emulsifier series: SEPILIFE™ NUDE and SIMULGEL™️ EG – increasing the viscosity by adding a structuring agent (part 8 with formulas and new instructions)

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A photo of three containers after packaging a cold process emulsion using SEPILIFE™ NUDE. The first beaker contains a bit of lotion with a black spatula. The second contains three small tottle bottles. The third has a blue spatula.

Welcome to part eight of this series/course – Formulating Friday cold process emulsifier series – in which we’ll look at how to increase the viscosity by adding oil-soluble solid-at-room temperature ingredients by creating a new heated oil phase for the formula. In our last post on November 29, 2025, we looked at increasing the viscosity...

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