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Magnesium chloride emulsifier
what emulsifier can I use to add magnesium chlroide into my formula? I want the final consistency to be a gel type and have been using Aristoflex which works well until I add 5% magnesium chloride into the formula. Does anyone have any suggestions? I’ve tried using sodium polyacrylate and carbomer Ultrez 21 also but no success. When I add cetostesryl alcohol into it it changes the consistency to more of a cream rather than a gel.
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4 Replies
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What else is in the formula? Do you actually want to emulsify any oils or do you just want to create a magnesium chloride gel?I have seen magnesium chloride gels that use hydroxypropyl starch as the thickening / gelling agent.Hope this helps
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I have 76% water and 13.2% oil, peg-20 and glycerol monostearate. I had 1% Aristoflex which worked at first without the addition of the magnesium chloride but since then it hasn’t worked. Thanks in advance!
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Which aristoflex? Aristoflex Silk is the most tolerant of salts so maybe try that one, though maybe 5% would be too much… But it wouldn’t hurt to try
Siligel from Lucas Meyer has great skinfeel and salt tolerance but your gel won’t be crystal clear and it is a bit pricey.
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I experimented with many polymer emulsifiers including Aristoflex and none of them performs well in presence of high amount of electrolytes. My recommendation is using Sepimax Zen. It is designed specifically to tolerate low pH and high amount of electrolytes. But you have to make sure that you have a good emulsification system, because Sepimax Zen has no emulsification properties (unlike Aristoflex that acts as an emulsifier). Think of it as carbomer, that you have to leave overnight to hydrate. It doesn’t like high shear, but if you allow it sufficient time to hydrate, you will not need much stirring.
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