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Formula separation
A portion of my product keeps separating from the final product. It sometimes looks like it curdles on emulsification and when hand stirring stays together conglomerated. What can be causing this?
My formula consist of:
min the water phase:
Pentylene glycolEctoin
panthenol
butylene glycol
sorbitol
niacinamide
sodium PCA
sodium phytateoil phase:
safflower
argan
squalane
octyldodecanol
tribehenin
symbiomuls GC
gmcysmall amount of glycerin & Xanthan
final phase:
microalgae extract
copper peptide dissolved in water
Dermosoft 1388 ecofinal ph is approx 5.2-5.5
adjusted with citric acid solutioncolour of separated part is very slightly off clear
If someone could please give any feedback as to what may be causing this?
Thank you in advance.
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6 Replies
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You didn’t % and %symbiomuls GC.
I don’t know if this any help.
https://personal-care.evonik.com/product/personal-care/en/products-solutions/formulations/pages/formulations.aspx?formulationId=4742 -
How are you emulsifying? You mention stirring. Please describe your process.
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Percentage symbiomuls GC is 5%
I emulsify with a dynamic MX100
The longer and more high shear seems to make it separate more and when I tried by just stirring at the end after emulsification it brings it back together - if that makes sense. -
Karen said:Percentage symbiomuls GC is 5%
I emulsify with a dynamic MX100
The longer and more high shear seems to make it separate more and when I tried by just stirring at the end after emulsification it brings it back together - if that makes sense.Put the other %s you’ve used and that’ll help determine whether you’ve enough emulsifying agent.
I would assume that you need a high shear initially until a grain-free emulsion is formed and continual stirring thereafter until cool.
The separation might be because you have something that has not incorporated into the emulsion, or that your emulsion isn’t stable as a result of not enough (or wrong type) or emulsifying agent. -
GMCY can have a negative effect on viscosity and stability.
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I use this emulsifier for all my emulsions and have never had any issues at all as well as the low 0.3% gmcy. The addition of the Xanthan helps to counter that.
I emulsify until Cream is formed and then after adding my Xanthan glycerin solution.
I have another very similar formula that isn’t separating. So can’t understand what is happening with this one. I am well within the oil ratio for emulsifier in the formula as it can take up to 40% oils and mine is at 21%
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