

aliciavr6
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Well, I’m still dealing with this formula months later lol. The SCI version turns almost gelatinous after sitting in a bottle, and is difficult to get out. The texture looks rough, like cottage cheese. It works really well though, it’s very nice to use and lathers up well.
Tried to add some SLSA, and the emulsion breaks again after a few days.BUT I realized my emulsifying wax is cationic while the surfactants are anionic so I’m going to try a different emulsifier (cetearyl alcohol, ceteareth-20) that is non-ionic, and add some cetyl for conditioning/glide/extra emulsification power. ???????? -
The SCI in place of the Coco Glucoside worked! I even did a test with our cold conditioning emulsifier (ICE) and that turned out great as well and saves a bit of work. Thank you all, especially @Bill_Toge
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@Bill_Toge I did a test today with 15% SCI and 10% CAPB. So far so good!!! I’ll know for sure in the morning ???????? Thank you greatly!
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magoo said:Have you tried using BTMS-50 instead of 25?
No I haven’t, but I did try to add additional cetyl and cetearyl, so I assumed that wouldn’t work. The only additional ingredient in the 50 is butylene glycol, I don’t know what that is. Would it help stabilize?
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ketchito said:@aliciavr6 I have a similar product for a client, just not with so much glucoside and betaine (rather half). Do you need as much surfactant? Also, if you need more viscosity, try increasing the BTMS 25 and removing Crothix.
I did some tests yesterday with decreased surfactants, 20% coco gluc and 15% cocamidopropyl - and increased BTMS to 6%… they were starting to separate when I came in today ???? Maybe I’ll try one last one with just 10% of each surfactant.
Thank you!!! -
Bill_Toge said:the oil and water parts of your formulation fundamentally incompatible - while they are efficient surfactants, coco-glucoside and cocamidopropyl betaine are both highly soluble in water, and will destabilise any emulsion
if you want to create a foaming cream and incorporate oils into it, your best bet is to use an isethionate/fatty acid system as your primary surfactant; it has several key qualities in common with soap but it’s not actually soap
Thank you!! I will try sodium cocoyl isethionate, as we use that already in other things and have on hand. I just kind of hate working with it because the powder is so messy! The SCI won’t destabilize the emulsion? or should I skip the emulsifier altogether. I’ll do some tests today! It’ll be nice not to have to adjust the pH then.