seryou
Forum Replies Created
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@Graillotion Yes that’s what I was thinking. I think it’s best to add cetiol ultimate in the cool down phase anyway as it’s volatile so I’ll try take it out of the oil phase and see how that goes.
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@Graillotion I’ve tried adding it at the start and at the end. When it first happened the oil phase got up to 90°C and it still wasn’t melting (it was a small batch so a total of 21g of oil phase, and was being heated for a while). We’d break it up into smaller bits but they’d just clump together again without melting. I’ve been using the same batch and haven’t had this problem at all, its not expired either.
So I’m just a bit confused considering it melted perfectly fine in my previous prototype which was essentially the same formulation and was only made a few days prior.
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@Graillotion I was stirring it the whole time it was heating, I’ve made a 2kg batch using these emulsifiers (different product) and haven’t had this issue, it all melted into a homogeneous mix. I haven’t heard of adding it to the water phase though, might try that out.
@ozgirl In my experience as well the Eumulgin SG only disperses, but its quite a fine powder and I’m seeing waxy lumps in my oil phase which only appeared when I added the PL68/50
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@MarkBroussard I’m not sure if this exact formula has been made, but the person who put it together for me based it off of a previous Mg cream they had made in the past (though it was written from memory so likely wouldn’t be the exact same). Should GMS on its own have been enough to emulsify?
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@Paprik I’ll have to check when I’m at work but we have quite a few emulsifiers/blends, off the top of my head I know we have some Emulgades and Eumulgin, as well as some GMS/PEG blends. Do you have any particular blends you recommend? Would this be in place of the Polysorbate?
I believe it was low shear, as I was using a three-blade propeller with an overhead stirrer. I read somewhere that low HLB emulsifiers can only stabilise w/o emulsions so I thought that was what was going on but I could be wrong.
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@Paprik I actually did try removing the Polysorbate and just using the 5% GMS SE but the phases separated as soon as I started adding the oil phase, not sure why that is
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Would you suggest the Polysorbate 1% alongside the lowered Cetearyl Alcohol and Glyceryl Stearate levels? And if I do use dimethicone what level should i start at?
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MarkBroussard said:@seryou:
Try dropping your Glyceryl Stearate SE to 2% and Cetearyl Alcohol to 2%. Why so much Polysorbate 20?
Dimethicone … will solve your problem. I would suggest using it.
Thanks Mark, I’ll try this out. What levels of Polysorbate 20 would you suggest? I’m relatively new to formulation so this formula was given to me as a starting point. I personally have no issue with dimethicone but I don’t have the final say on it
