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low viscosity in peroxide cream
Hi every one:
I have problems making a peroxide cream, the formula is very simple:
Lanette SX 4.3 p/p%
60 % hydrogen peroxide 7.62 p/p%
metal chelator 0.02 p/p%
Fragrance 0.0038 v/p%
To make, i mix the lanette with water (metal chelator previously solved) at 65 °C and homogenize it. Then it’s cooled and at this point everything is right, but when I add the hydrogen peroxide (once the mix is at 25°C) the cream loses viscosity, and becomes completely liquid. I know this formula has been used before with no inconvenients, so it’s really confusing for me.
my hypothesis are:
Reaction of peroxide: I dont see any bubbles, so i think it is unlikely.
Mistakes in procediment: as i said, this method has been used before, why it did not happened then?
Quality of wax: I dont know if it is possible .
Any help would be apreciated. Thanks
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4 Replies
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it’s very likely that you’re over-shearing the product when you’re add peroxide; there’s not much wax in the formula, and nothing that will help the viscosity recover quickly once it’s been sheared
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thank you Bill. Agitation is gentle when the peroxide is added, and the addition is made carefully at a small rate. Can you recommend me some product to achieve the viscosity recovering you mention?
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try cetearyl alcohol; you’ve already got an emulsifying wax in there so it should mix in easily
also, I’d suggest using a 35% solution of peroxide rather than a 60%, as it’s safer and easier to handle
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ok, I will try it. thanks a lot!
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