Classes & class ideas

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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Formulating Friday cold process emulsifier series: SEPILIFE™ NUDE and SIMULGEL™️ EG – increasing the viscosity by adding a butter (part 7 with formulas and new instructions)

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A white plastic weighing boat contains some cream coloured chunks of tucuma butter. The boat is sitting on a red tablecloth.

Welcome to part seven 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 October 31, 2025,  we looked at increasing the viscosity...

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Chemistry Thursday: Triglycerides – how they pack together to create different kinds of crystals and the impact on melting point, part 41

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Welcome back to this introduction to cosmetic chemistry course! Let’s continue our investigation into triglycerides with part 41 by looking at how triglycerides pack together and why that’s important. An important note about this series – it’s here for life. It isn’t going anywhere. If you want to take a break or take a few...

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Formulating Friday cold process emulsifier series: SEPILIFE™ NUDE and SIMULGEL™️ EG – increasing the viscosity by increasing the emulsifier and making different emollient choices (part 6 with formulas)

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Two lotions on white plastic plates on the metal plate of a digital scale, both using SEPILIFE™ NUDE emulsifier. One is the sugared lemon body yogurt, the other a honeyed body custard. Both are white and thickened.

Welcome to part six of this series/course – Formulating Friday cold process emulsifier series – in which we’ll look at how to increase the viscosity of the formula by increasing the emulsifier and making different emollient choices (part 6 with formulas) Are you playing along? Have you made anything yet? What did you think? What...

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Chemistry Thursday, part 39 – triglycerides and their impact on physical and sensory characteristics of emollients, part 39

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A cup of lightly green coloured grassed oil in a shot glass on top of a clear plastic riser.

Welcome back to this introduction to cosmetic chemistry course! Let’s continue our investigation into triglycerides with part 39 of this series. In today’s post, we’re looking at the impact of triglycerides on the physical and sensory characteristics. We’re also looking at iodine values and how we can use those, then we’re taking a side journey...

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