

DAS
Forum Replies Created
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DAS
MemberMay 24, 2018 at 5:06 pm in reply to: Mild Shampoo formula result in itchy scalp and greasyYou are way over 11% AM. You should rethink your surfactants. MIPA is used between 0,5 and 1,5%. I guess that’s why the hair will feel greasy and the shampoo thin.
I suggest you first make a surfactant combo that works for you and then add the oils.
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DAS
MemberMay 23, 2018 at 6:32 pm in reply to: Interesting study on SLES helping cetyl alcohol bind hairInteresting, didn’t think it could have that benefit, I always saw it as a stability ingredient. It would be interesting to see a comparative against other emulsifying waxes.
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When working with cationic antibacterials you cant use anionics, it will interfeer with the antibacterial properties. I think this is explained in the PDF Belassi posted in another related topic.
You can use a nonionic surfactant with higher HLB or ethanol to solublize it.
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DAS
MemberMay 20, 2018 at 8:07 pm in reply to: Shampoo too thin with PEG 40 Hydrogenated Castor OilAnd far too much salt.
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DAS
MemberMay 19, 2018 at 10:30 pm in reply to: Most common method used to reduce viscosity in commercial shampoos?Xilene sulfonates and glycerin. Some nonionics too, fatty alcohols can work in some cases.
Using too much salt?. I don’t think you will find that in a comercial shampoo, at least not in a decent formula.
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Sorry, but that won’t work. Crosspolymers are a huge branch and one of the hardest things to figure out when imitating a formula, since you have hundreds that can be named with one name. 940 won’t work, that’s not it’s purpose.
For what you are trying to make I suggest you try this:
10% SLES 70%
10% CAPB
5% glycerin
Qs of salt and citric acid.That’s basically a very simple base formula. You can later add nonionics with moisturising properties for example. Or increase the surfactants for oily skin.
Use HEC if you are going to suspend something, otherwise just skip it.
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Try anionics and hot water.
We had similar discussions, but it was related to machinery instead of glass.
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It depends on what you are sanitizing, it must be compatible or non-reactive. For example, there are mixtures of hydrogen oxide and peracetic acid designed specifically to clean tanks.
Ethanol 70° works fine for spraying, but there is no residual effect. If you follow the GMP you should sanitize the tanks and hoses before and after use. You can also throw something else on the mix, I use 2% benzalkonium chloride for residual effect.
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DAS
MemberApril 24, 2018 at 8:42 pm in reply to: Please critique a formulation (personal product): need to get rid of warming sensationWhat’s the purpose, neutralize the carbomer?. Use triethanolamine 0,5%. But it would be better a carbomer that will work at lower pH.
https://www.lubrizol.com/Personal-Care/Products/Product-Finder/Products-Data/367
I don’t know if it can be used, is it a cosmetic or a drug?.
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SB is sodium benzoate?. It works at low pH, so it won’t work.
We can’t guess what will suit you since we don’t know what’s on each product. Preservation systems are made accordingly.
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Are you trying to emulsify phenol?. I hope you know what you are doing, manipulation is dangerous.
Increase the amount of Red Turkey Oil.
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DAS
MemberApril 23, 2018 at 6:10 pm in reply to: Germany: Where to find paddle/U/anchor impellers/mixers?Heidolph Ankerrührer
This is what google showed, I have no idea what it says, but googling Ankerrührer shows anchor impellers.
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DAS
MemberApril 23, 2018 at 6:06 pm in reply to: Germany: Where to find paddle/U/anchor impellers/mixers?Best you can do, mail local companies with that image and ask the name and if they have it in stock, they sure do. If they don’t you can buy it on amazon or have it custom made.
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DAS
MemberApril 23, 2018 at 2:50 pm in reply to: Need suggestion about private label service provider -
At the bottom?. Wouldn’t go up?. It’s lighter.
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If it’s at the bottom would we something heavier, I’d rule out this phase, it’s on the oil phase or there’s a compatibility issue between phases.
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I don’t know why there’s this idea that co-surfactants shouldn’t be taken into consideration. You must consider all surfactants in your formulation. I guess you can read analytical books about determination of surfactants.
10% is also low, you should consider reaching 20% for a good performance.
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Of course not, you can only pray. There are countless things that could go wrong. And that’s if you can successfully scale your lab sample.
Given the fact that you can’t replicate the exact conditions in both batches you must make another.
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The cheapest lab scale you can find will be fine.
If you need more precision than that I suggest you use 2 scales, high precision and wide range are very expensive.
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Maybe. I see it more marketing oriented. If the segmentation improves and they add more useful info about the products could become a serious competitor. So far it’s too green.
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What do you mean by real names?. INCI names are the real names and the only nomenclature accepted in cosmetics.
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DAS
MemberApril 16, 2018 at 10:28 pm in reply to: Will essential oil solubilize in a water solution with SCI & Coco Betaine?The most common issues you will face, if like Perry says your system is clear, are rheology and oxidation. There are two things that will give you more certainty, the HLB system and a stability test. Won’t be strange to find your product turns brown in a month.
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Found this. “When using this emulsifier, a stabilizer like xanthan gum used at 0.5% can increase stability. Fatty alcohols used at low levels (1 to 3%) can also be used to help increase the formation of the liquid crystal structure.”
Perhaps xantan gum and cetostearyl alcohol will fix it. And for your mixing issue you can try this.
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DAS
MemberApril 14, 2018 at 12:11 am in reply to: Oil soluble film former for long lasting lip balm?