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Cocamide DEA & Cocamidopropyl Betaine (Incompatibility)
Hi there!
I’m formulating a low-poo shampoo for the curly hair public but I think that there’s some incompatibility between Cocamide DEA (I’m using it as a thickener) and Cocamidopropyl Betaine in my system (I’m using it as a gentle/low foamer surfactant).
When I add Cocamide DEA and CAPB the system becomes instantly cloudy. Does anyone know what can be happening? Has anyone ever experienced it? Any answer would be really helpful. I’ll put the formula down below:
1. Water… q.s. to 100%
1. PEG-150 Distearate - 1% (thickener)
2. Cocamidopropyl Betaine - 15% (gentle and low foamer surfactant)
2. Cocamide DEA - 5% (thickener)
3. Polyquaternium-10 - 0,5% (conditioning agent)
3. Plant Extract - 0,2% (marketing active)
4- PEG-40 Hydrogenated Castor Oil - 3% (solubilizer)
4 - Frangrance - 1%
4 - Preservative blend - 1%Looking forward to hear from you.
Kind regards 🙂
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6 Replies
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@tecnico3vinia CDEA and CAPB are compatible. Perhaps your issue can be related to the kraft point of your formula. Are those number in your formula the order of additio (I hope not)? You are actually using way too much CDEA. Perhaps you could increase your PEG-150 or include a polymeric rheology modifier (like Chrotix Liquid).
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At what temperature are you adding them?
I would decrease CDEA at 2-3%, and increase the quantity of PEG-150 Distearate to achieve the desired viscosity. -
ketchito said:@tecnico3vinia CDEA and CAPB are compatible. Perhaps your issue can be related to the kraft point of your formula. Are those number in your formula the order of additio (I hope not)? You are actually using way too much CDEA. Perhaps you could increase your PEG-150 or include a polymeric rheology modifier (like Chrotix Liquid).
Thank you! I’ll test it again heating Cocamide DEA in water and increasing the PEG-150 Distearate! Hope it works! 🙂
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em88 said:At what temperature are you adding them?
I would decrease CDEA at 2-3%, and increase the quantity of PEG-150 Distearate to achieve the desired viscosity.In RT temperature, since I don’t heat the system. I think that if I heat the system, it will help on the incorportation of Cocamide! I’ll definetly try it. Thank you. 🙂
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@tecnico3vinia You don’t need heat to incorporate CDEA (unless you are using MEA or MIPA instead of DEA). You need to heat to melt PEG-150 distearate though.
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I mixed these two ingredients in a transparent formula and had no issues. Having said that I also had an anionic surfactant (tried in several sulfate free formulas).
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