Weekend Wondering: What does it mean if a product advertises itself as “oil free”?

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In this post, on coco-caprylate caprate, John asks: I see coco-caprylate appearing in a lot of “oil-free” moisturizers. What constitutes an “oil-free” moisturizer? It seems to me a lot of them use oil-derived ingredients anyway.  This is a great question, and the answer really is “I don’t know.” I don’t buy cosmetic products from stores,...

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One ingredient, five products: Stearic acid – body scrub bars

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Stearic acid is a great bar hardener, and I like to use as both a bar hardener and emollient in my body and foot scrub bars. Let’s take a look at the body scrub bar today and the foot scrub bar on Monday. What do I want in a body scrub bar? I want something that...

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One ingredient, five products: Stearic acid – a thicker foot cream

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Stearic acid is a natural inclusion in a cream. In fact, you can thicken any basic lotion into a cream by adding some stearic acid. We took a look at a hand lotion yesterday. Let’s take a look at a cream today. Actually, let’s back up a second. What’s the difference between a cream and...

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One ingredient, five products: Stearic acid – a hand lotion

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If you’ve never used stearic acid in a lotion before, this is the lotion formula  I recommend as a great starting point. It’s a small variation on the basic lotion you’ll find in the newbie section of the blog, but it’s a great way to learn what stearic acid brings to your product. As I mentioned...

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One ingredient, five products: Stearic acid

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Poor stearic acid. It’s often overlooked for its glidier, silkier cousin cetyl alcohol, but this fatty acid is an inexpensive way to thicken a lotion, anhydrous body butter, lotion bar, and more. Stearic acid is a saturated, long chain fatty acid with 18 carbon molecules, which is to say it is a chain of carbons...

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