Foundation subscribers and up: Ingredient substitution ideas for November 2025?

Because we’re in the busy season for our suppliers and because we’re seeing shortages of ingredients around the world for basics, like sodium cocoyl isethionate (SCI) – ethoxylated surfactant – and emulsifiers, I thought I’d start a new monthly page for potential substitution of ingredients where you can share your comments, questions, and formulas. This...

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Formulation subscribers! Q&A for November 2025!

It is vital that you read this post before posing your question! This is full of information that will get your questions answered much faster. Please be patient when asking a question as it takes a lot of time to answer something in detail like this post that is over 2,800 words or the equivalent...

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Foundation subscribers and up: November 2025 duplication request post

Do you have an idea for a product you’d like me to look at duplicating? This is the post for you! This is the official post for posting the things you’d like me to consider duplicating. When you make a suggestion, please include the following information, all of which makes it easier for me to review your request...

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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)

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

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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