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How can we make no irritant surfactant?
Posted by Fekher on September 24, 2018 at 10:05 amActually i’am thinking about no irritant surfactant for shampoo so i tried to do it from soap but almost voices say that it will not works.
So have any one think or try something about making no irritant surfactant?
Actually i just start thinking about Esters … all your ideas will be welcomed.
@Chemist77 @Gunther @Belassi @DAS @Microformulation @ngarayeva001Fekher replied 6 years, 1 month ago 6 Members · 14 Replies -
14 Replies
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If you are trying to make a product that is truly mild (like a baby product), you would need to use amphoteric surfactants, such as Cocamidopropyl Betaine. If you are looking for just a mild shampoo you can use Cocamidopropyl Betaine as a primary surfactant, with Coco Glucoside and Decyl Glucoside (as a foam booster at a low %).
I personally think that even sulfates are not that irritating when properly formulated, but it depends on the result you would like to get. -
You can either use a non-irritant blend of surfactants or you can use a more traditional blend and additives to remove the irritation.
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Proteins are one such thing. I discovered that spirulina makes a terrific no-tears shampoo but it isn’t stable enough.
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@Fekher, Decyl Glucoside can be mild in a properly formulated product, but it is not mild (or non irritant) by itself. It is often marketed as mild and if you google it and open a wikipedia page it would say “mild non-ionic surfactant used in baby products” but, it can be irritating at higher concentrations. I believe that @Microformulation can add more on this.
Another point, are you going to use Decyl Glucoside as a primary surfactant? It is usually used at low level to boost foam (I saw it as a primary surfactant in leave on make up remover). It tends to make the formula pretty thin. -
Here is the issue. Soaps and surfactants are so different that you need to treat them as vastly separate and dissimilar products.I would avoid Decyl Glucoside as a primary surfactant. As many have pointed out, it is an irritant. Also, it has much negative marketing bias. There are numerous other better surfactants.Shampoos have a significant aqueous portion and a favorable pH for many water-based products which can ameliorate the irritation. (No, I am not listing a bunch for anyone, research, research, research, no freebies here, we all do this for money in real life). Also, the list is expansive and there are too many sub-details regarding each material.
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What he actually wants is to make his own surfactants. Simple answer, don’t. It takes a big budget, proper equipment, experienced chemists and a good method. And of course you would have to source raw materials of high quality, the slightest variation will affect the process.
There are many reasons why it’s a bad idea. Buy what’s already available and properly made and tested.
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Microformulation said:Here is the issue. Soaps and surfactants are so different that you need to treat them as vastly separate and dissimilar products.I would avoid Decyl Glucoside as a primary surfactant. As many have pointed out, it is an irritant. Also, it has much negative marketing bias. There are numerous other better surfactants.Shampoos have a significant aqueous portion and a favorable pH for many water-based products which can ameliorate the irritation. (No, I am not listing a bunch for anyone, research, research, research, no freebies here, we all do this for money in real life). Also, the list is expansive and there are too many sub-details regarding each material.
So active CAPBetaine % should be higher than glucoside to remain nonirritating?
What percentages of the above would you use, ballpark?@Fekher
there’s a Evonik PDF file on Tego Betain F 50 that says that when CAPB concentration becomes 80-90% of the total surfactants, irritation is the lowesthttp://glenncorp.com/wp-content/uploads/2013/11/DS_TEGO_Betain_F_50_e.pdf
Now, high CAPB feels a bit slimy, so you may wish to add something else, probably glucosides.
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I was arguing that for growing market bias as well as the irritation potential, Decyl Glucoside would not be my choice at ALL, regardless of the other surfactants.
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