Tips & techniques: Why it’s ill-advised to make batches below 100 grams or batches with non-multiples of 100!

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A beaker with clear liquid on a digital scale. We added SIMULGEL™️ EG emulsifier to the beaker. It hasn't been mixed yet.

I just went into this in the shopping list post for the new introduction to cold process emulsifiers series running from October 2025 to March 2026 here every Formulating Friday starting October 3, 2025, that’ll be available to Foundation, Formulation, and Innovation subscribers to the site here, but I thought it so important, it should...

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Super quick, super easy products for gift giving: Emulsified foot scrub bars!

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Three foot scrub bars - oval bars made with various butters and pumice - sit under a pink violet.

I thought I’d share some of my favourite, easy-to-make, quick, inexpensive formulas you might want to sell or give as gifts this year. You can find the original formula in this post – One ingredient, five products: Stearic acid in foot scrub bars! I’ve modified it quite a bit since I shared it then.  My...

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Chemistry Thursday: We’re skipping this week…

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A diagram of a micelle showing the water soluble ingredients on the outside of the micelle, the oil soluble ingredients inside the micelle, and what's in the emulsifier phase. I am addressing each of these in the text

…because this week’s post was way too big and I need to figure out how to organize this and the next few posts so they aren’t so overwhelming. I’m just super excited to share all the awesome stuff about esters and emulsifiers! In the meantime, catch up on the series with these links… Click here...

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Let’s make a 10 minute rinse-off conditioner with all kinds of humectants, botanicals, conditioners, proteins, and more: Part seven – adding more conditioning ingredients 

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Hi, everyone! I’m sorry this series has taken so long to finish. I’ve been working on loads of great stuff over the summer for upcoming series and e-books, and this series wasn’t completely written up until now.  Let’s create an awesome conditioner into which we can add all kinds of wonderful ingredients, including the awesome...

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Super quick, inexpensive products: Lip scrubs!

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I thought I’d share some of my favourite, easy-to-make, quick, inexpensive formulas you might want to sell or give as gifts this year. I’m starting with one of my favourites – this really easy lip scrub!  One of the easiest and fastest products you’ll ever make are these lip scrubs, based on the ones from...

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