Feel of stearic acid vs. cetyl alcohol

[Sunny]

Can anyone explain the difference of the FEEL of a lotion made with stearic acid vs. one that is made with cetyl alcohol? Does one glide better than the other?

I am formulating a facial lotion and wonder if one is better than the other for this application, or maybe both together is better? I was going to order some stearic acid but wonder if I may need both.





ETA: I am asking because of this comment from Swift's blog...
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January 4, 2011 7:10 PM
Susan Barclay-Nichols said...

Hi Jane. You can generally switch cetyl alcohol and stearic acid in most recipes, but it will change the skin feel from a slippery lotion to a more grippy cream. It's okay if the recipe isn't exactly 100% - 99% to 101% works just as well.
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I can't tell which ingredient she is referring to as "slippery" or "grippy." I THINK I want the more slippery thing for a facial lotion. Right?

 

[soapbuddy]

Too much stearic acid can make the lotion draggy. Cetyl alcohol will give you more thickness. It depends what you want your formula to do.

 

[photoshadows]

In my experience, the stearic will make for a "draggier" cream and the cetyl alcohol will have the better glide. I'm not sure which would be better for your purposes, but I would guess the cetyl alcohol for most skin types.

 

[carebear]

In my experience, the stearic will make for a "draggier" cream and the cetyl alcohol will have the better glide. I'm not sure which would be better for your purposes, but I would guess the cetyl alcohol for most skin types.

I agree, based on my limited experience.