Q&A: Can we use more than one active in a facial moisturizer?

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A collage of four photos. The upper left is of a beaker with a creamy moisturizer in it with a green spoon. The upper right is of a bottle with brown liquid and a cup with brown liquid on a metal scale. The liquid is Fision® Wrinkle Fix. The lower left photo is of Fision® Glow Plex, a bottle and a cup with light brown clear liquid sit on a metal plate on a digital scale. The lower right photo is of Fision® Instant Lift, a clear brown liquid in a plastic shot glass sitting on a brown shelf in front of beakers.

In the monthly Q&A, Katherine asked, For the Facial Moisturizer you made during the Zoom workshop February 8th, do you ever add more than one active? For example, instead of 3% Fision Wrinkle Fix, could you add 1.5% Fision® Wrinkle Fix and 1.5% of the Fision Instant Lift or 1.5% Fision GlowPlex? Or is it...

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Q&A about shampoo bars: Can I add Dry Flo TS? How do we press heated bars? Can we use metal containers? And so much more!

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In the monthly Q&A, Rian asked, Hi Susan! I’ve been following your shampoo bar tutorials while experimenting at home and a few questions came up that I’m hoping you could help with: DryFlo TS in shampoo bars: Is it okay to add DryFlo TS to a shampoo bar? I was hoping it might help add...

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Zoom workshop: Modified formulas from the workshop – Sepigel 305!

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A plastic container sits on a counter with a very white, thicker looking emulsion inside. This is a lotion made with Sepigel 305.

In this post, we’re looking at the formula for a cream or body butter viscosity with Sepigel 305 or Sepiplus 400 that we modified in our Zoom workshop on cold process emulsifiers that we held on Sunday, February 8, 2026. I can’t wait to do some more! (Make your suggestions for topics in this post!) The...

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Formulating Friday cold process emulsifier series: Sepigel™ 305 and Sepiplus 400 – adding more humectants, part four

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A plastic container sits on a counter with a very white, thicker looking emulsion inside. This is a lotion made with Sepigel 305.

Formulating Friday cold process emulsifier series: Sepigel™ 305 and Sepiplus 400 – adding more humectants, part four Welcome to part four 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...

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Questions and answers about shampoo bars: The master list (updated February 13, 2026)

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I am writing this post to create a place where you can find all the questions you might have about shampoo bars! I will only be answering those that were emailed to me or posted as a question on the blog in the comments or in this post, Shampoo Bar questions, share them here! I’ll...

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