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Sodium Stearoyl Glutamate and Carbomers
Hi everyone! I am trying to formulate a body lotion by combining Sodium stearoyl glutamate and Methyl glucose sesquistearate. In my current formula I use 0.5% SSG and 1.5% MGS. My fat phase is 10% and my rheology modificator is Carbopol ETD 2020 (Acrylates/C10-30 Alkyl Acrylate Crosspolymer).
When I am trying to neutralize the Carbopol with 10% NaOH solution - nothing happens.
I generally mix the Carbopol with Octyl stearate and add the mixture at 60 degrees in the emulsion. I homogenize the emulsion for a minute, and then let it cools down by mixing.
At 40 degrees I usually make the neutralisation, and this worklflow works great.
Now with this emullsifier the magic doesn’t happen. The Carbomer doesn’t want to ticken at all.
I guess there is a relation between the SSG as it requires relatively low Ph and the neutralisation of the Carbomer.
I tryied to use Sodium Carbomer instead, but it didn’t want to ticken as well.
On first sight it seems that there is an incompatibility, but then I checked “INCI decoder’s” site and there i’ve seen a lot of formulas containing both SSG and Carbomer (neutralized with NaOH).
So the question is, do I miss something? Can you help me?
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This discussion was modified 4 weeks ago by
ggpetrov.
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This discussion was modified 4 weeks ago by
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3 Replies
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What’s the final pH your achieving with SSG and Carbomer?
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It’s about 6
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I don’t have experience with that system, but you can make a test bringing the pH to 7 (SSG would be fine, especially since it’s a basic salt and at higher pH, it’s be in its active form to emulsify).
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