formulating

Formulating Fundamentals Friday: How emulsifiers affect the properties of a lotion

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Welcome to part three of this new series, Formulating Fundamentals! In part one, we looked at substituting one oil or butter for another oil or butter in a lotion. In part two, we altered the viscosity by altering the oil phase. Today, let’s take a look at how your emulsifier alters the properties of a...

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Formulating Fundamentals Friday: Altering the viscosity by altering the oil phase

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Welcome to this new series I’m calling Formulating Fundamentals Friday where I’ll be sharing all kinds of things I hope you’ll find useful in learning how to formulate your own products. If this is all completely new to you, check out the Beginners! Start here! section of the blog.  Last week, I introduced you to...

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Formulating Fundamentals Friday: Substituting one emollient for another in a lotion! 

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Welcome to this new series I’m calling Formulating Fundamentals Friday where I’ll be sharing all kinds of things I hope you’ll find useful in learning how to formulate your own products. If this is all completely new to you, check out the Beginners! Start here! section of the blog.  In my lotion formulas, you can...

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Surfactants: Cleansing descriptions and increasing mildness – analyzing surfactants

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Thanks for sticking around to the end of this series. I know for some this might seem like a very dry subject and some of you are yelling at the screen for me to shut up about chemistry stuff and get to the formulas, but if you have a curious mind and want to learn...

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Considering the effect of different combinations of oils & butters in a basic lotion

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Let’s take some time today to see how this all comes together in choosing butters and oils for our lotions! Defining some scientific terms: Solubility, viscosity, surface tension, and interfaces Defining some scientific terms: Contact angle, wetting, refractive index, and specific gravity Defining some cosmetic chemistry terms: Spreadability, play time, cushion, drag, and melt point...

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