RocketDog
Forum Replies Created
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Many thanks, @gordof — you’ve shed light on all my questions! Given that it is rinse off, I have been thinking about going with a single fatty alcohol anyways, so this helps.
With regard to the tocopheryl acetate, I was wondering if it was there more for thickening, though it probably isn’t enough to make a difference. But if it were to be, then I thought about substituting with castor oil. But at 2%, maybe it makes more sense to just leave it out, as you suggest.
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Thanks. But I do hate knowing I ruined your morning coffee. That’s a high crime in my book.
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@Pharma - given your response I expect you might not even read this, but you totally misunderstood. I was pointing that comment in the direction of people who “touch and even mix chemicals without some basic knowledge of chemistry,” — meaning folks who have so little understanding of chemistry that they think it’s fine and safe to mix random things together.
It was most certainly NOT aimed at you and I regret that it apparently came out that way. I cannot even imagine why anyone would want to question your credentials or competencies.
I hope you will accept my apology for causing such unpleasantness for you.
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Pharma said:Why on earth do people touch and even mix chemicals without some basic knowledge of chemistry and the stuff they’re handling?
Oh, oh! I know this one (wildly waving arm)! It’s the Dunning-Kruger effect, right? Or as we used to say in graduate school, “it’s takes some bit of competence to recognize your own incompetence.”
(And that’s what you all get for letting a psychologist in here.)
-Rocky
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So do suppose that the reason it’s recommended to melt it low and slow is because of this putative flash point?
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I feel like I’ve seen ingredients marketed as “creating feelings of happiness and joy” (or some such thing) but really it’s Montanov 202 creating those strong feelings!
I appreciate all of this good advice more than I can say. I’ll report back soon. I’m slightly preoccupied with wildfires at the moment, but I will continue testing as soon as I can. -
@Abdullah - I haven’t been measuring pH at this point. Good point about the xanthan, though, because I wrote the wrong thing. It was 0.2%, NOT .02%. Funny, I read and re-read the first post so many times and *still* missed that typo.
I do know the 202 composition as far its being Arachidyl Alcohol, Behenyl Alcohol, and Arachidyl Glucoside. Don’t know the exact percentages, though. Are you saying that the GMS SE and cetyl alcohol may be reducing the viscosity of this one emulsifier, but not the others?
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Ok I made the 202 again and made sure that everything got up to 85C. At the moment it is still thin, but I’ll wait and see how it shapes up over the next couple of days. I am hearing you all tell me that the emulsifier to lipid ratio is much too high, and indeed, for all three emulsifiers the soaping is off the charts. Next round I’ll drop the emulsifiers to 2%. And, @helenhelen, I will try them in the oil phase as well.
@ggpetrov, thank you. Even with the cetyl alcohol, I think the olivem sample feels heavenly so I look forward to playing with it more. To clarify, I wasn’t aiming for a lotion vs cream in particular. I was interested in seeing the performance of the three emulsifiers under identical conditions. That 202 came out so different from the other two caused me to worry that there was an incompatibility with the other ingredients. Or a formulator error, which does appear to be the case. I guess 202 really is a different creature from the other two? I appreciate your guidance and will make note of those amounts going forward. I figure I can fine-tune the textures down line, after I understand the nature of these ingredients a bit more.
Much gratitude. I’ll report back.
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Thanks @Pharma & @Graillotion for the solids! I shall make new batches tomorrow, up the heat, and properly preserve so I can watch it for a few days. I’ll try a batch of 202 with a greater proportion of oil, too. I have to say, I do love the way these emulsifiers feel.
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Greetings! I am a retired neuroscientist who has been dabbling in cosmetic science for 10+ years. I am delighted to have found this terrific resource with so many helpful professionals. I would love to start a line of botanically-based products, but I’ve reached that point of learning where I am suddenly overwhelmed with how much I DON’T yet know.
Thank you for being here and I look forward to meeting you all.