DAS
Forum Replies Created
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1000 cfu is very bad, for something you put in your mouth anything over 100 is unacceptable (I think that’s the limit for oral care, and it’s still too much).
(I understand that a preservative challenge test is likely the best option but want to avoid spending the money if possible.)
Don’t. You will spend more money if you get sued for selling a rotten product. At least put some benzyl alcohol on it. Is ecocert/COSMOS compliant. -
Cancer free ain’t a bad marketing campaign. Although it’s never been prooved that causes cancer on humans.
It’s a great product. Economic, no heat required, great increase in viscosity at low concentration. The quality is very important. I remember having issues like turbidity and even phase separation. It’s hard to know if you are buying it pure or a blend with sunflower or soy. Buy from big brands only and sealed container and you will see the difference.
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The On-Line INFOBASE is a paid subscription service that is only available to Council members.
Why would you need that much for a shampoo?.
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There are wonderful surfactants that will decrease viscosity (like what you posted about glucosides).
The thing is to make the surfactant system work the way you want, viscosity can be fixed. That’s why you can usually see formulations with salt and gums.
I’d never go over 1%, now im working between 0.3-0.5%. If that’s not enough then I’ll choose another thickener.
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@Gunther rarely a customer knows what they are buying. Mostly they are guided by the big companies making claims in comercials. Even when the natural and organic market is a growing niche, the “concerned and conscientized” are guided by what they read on a blog or magazines with no scientific backup.
I suspect some of the fearmongering news are instigated by the big monsters to shake the market.
Ontopic: 15% glucosides ain’t much?. Given the allergies issue they might cause I always considered it as a secondary surfactant, and never used it for the that reason.
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I don’t trust the paddles, and if im not mistaken the head spins around the bowl. I don’t think you will mix anything that’s not thick and gummy, and even if you can it will introduce too much air. And for shampoos good luck with the foam!.
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If you want something simple for massage tell them to use vaseline.
Any cosmetic formulation will require to consider variables like pH, and it should be made by someone with a minimum knowledge and understanding of what they are doing. Period.
To prevent any harm coming to customers I suggest you buy a base cream from a local supplier and make a list with things they can add safely to it. Even then I wouldn’t trust much. It’s quite common for someone with no experience to make mistakes, and you shouldn’t give them that responsability.
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I think a creamy product, more like a shaving cream kind of foam, tight and tiny bubbles is more suited for a men’s product. Perhaps you could use TEA soaps.
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Yes, the INCI rely on IUPAC, and are made by the PCPC.
You will find more info here:
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Lower the DEA to half and you will see a significant decrease of viscosity. Also you should consider DEA has 80 or 90% active.
What’s the purpose of erythritol?. doesn’t make it sticky?.
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316L it’s the rule, and usually what’s allowed in food and cosmetics. The diference is 2% molybdenum, which will increase the resistance to corrosion. You probably have AISI 304, that’s almost the same without molybdenum. But of course, 20% more expensive give or take.
But even 316L will get pitted, the salts are the most harmful thing to stainless steel, that’s not actually stainless. Even a small bump will prove that, it will start corroting in no time and rust will appear.
As for the SLS/SLES, I strongly suggest you ditch that supplier. Any respected supplier will tell you what you are buying and of course will give you the COA, even if you don’t buy closed container. Beyond 28% get’s pasty, and it’s really hard to water down. The best you can do is buy at 70%, since it’s not cost/effective to cut it you are pretty much safe.
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The pearl effect isn’t regular, that’s the beauty of it. If you want to make it white and shiny this is not the way. That is exactly what it’s supposed to look like.
Add color to it and you will notice the difference.
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I wonder if there is a synergy with the rest of the surfactants that makes it 11/10.
@Gunther you need to consider the pH and how it affects the CAPB. If it behaves as anionic it will most likely fail. Perhaps if you add citric acid before adding the CETAC it will make it compatible.
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I think your issue is the kind of carbomer you are using. There are low, medium and high viscosity. If you want to slightly gel your formula a high viscosity carbopol won’t work, no matter how much you use or how you neutralize it the result will be a thick gel.
I suggest you contact your suppliers and see what they have to offer for low/mid viscosity.
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That picture isn’t clear, but that’s how it usually looks. If you don’t have cationics in your formula you can throw some styrene/butadiene to make it opaque. (I take that’s a shampoo or a hand soap).
And it looks like you are using too much. I use it at 0.001% and the pearl effect is noticeable.
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That’s usually a neutralization issue. What’s the pH?.
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So… fluid body painting?.
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Errr… let’s see if I got this right. He takes the blood and then injects it again in the face?. Perhaps this has some benefit on old people with varicose veins or diabetics, but sounds extreme.
What possible benefit will have a cream made with blood?. Maybe heparin has some sort of benefit, but making a cream with it without any science to back it up its reckless.
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Sure, post your LOI.
My guess is you are using LABSA+NaOH. If you don’t want to use salt you could use TEA instead. You’d get an awsome detergent. Of course it’s all about the cost. That’s why it’s rare to see a detergent formulated with carbomer instead of salt.
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@Gunther I’ve never noticed that. Perhaps thixotropy is playing a role in there.
Being a low price product I guess the cost is important, but something cheaper will reduce the foam too. Considering the cost are diols as bill suggested the best cost/benefit?. Other than the salt curve, it is effective, but horrible results. The remaining salt as it dries will most likely clog the valve.
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Maybe because the salts are more soluble. The question is why are you using carbopol in a detergent.
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If weight is decreasing you have a serious case of evaporation or the employees are taking the “employees must wash hands” to the stars.
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I’d go with higher % actives to form a solid. I’ll give it a shot if I can get any alcohol from a supplier, I don’t want to buy a bag.
How hot you went and how much torque did you use?. I remember a chemist complaining about the temperature of the reactors when making NFs, they were about 250°C.
Anyone has experience in this?. Im wondering now if this could work with milder surfactants, or maybe CAPB.
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The more you add the more chances someone will be allergic. This is a very important thing to consider when formulating.
For conditioning you can use polyquaternarium 7.