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The viscosity problems and biphasic
Hello everyoneI have two problem in making shampoo with cetyl alcohol .but the low
viscosity and biphasic is still my problemwaterSodium Laureth Sulfate 8%Disodium laureth solfosuccinate 8%Cocamidopropyl betaine 3%Coconut diethanolamide 2%decyl glucosid 3%cetyl alcohol 2.5%caprilic caprric triglyceride 0.3pq 10pq 22I would be grateful if you help me.THANKS -
11 Replies
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@chemistry8303, here are suggestions, not knowing your order of addition (important), you need a greater level of cocamidopropyl betaine (CAPB) in this. CAPB is the amphoteric hydrotrope here and you need more of it. Reduce the anionics accordingly until you have a ratio 2 - 3: 1 anionics to amphoteric. Next, reduce or DEL PolyQ-22, it is redundant. If PolyQ-10 is dispersed properly (1st ingredient in and hydrated 100% before the next) and at the right level (~0.50%), that will be all you need. Remember quats, even polymeric ones, are inherently destabilizing in classic shampoo systems. Also, the first addition after the PolyQ-10 at 70 - 75C should be the CAPB, then the cetyl alcohol & TG, then amide, anionics last. Next, DEL the decyl glucoside; it is only interfering with the rest, not adding anything, plus is a notorius viscosity reducer. Finally, after blending this at 70 - 75C, cool SLOWLY, so slow you get bored.
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chemicalmatt said:@chemistry8303, here are suggestions, not knowing your order of addition (important), you need a greater level of cocamidopropyl betaine (CAPB) in this. CAPB is the amphoteric hydrotrope here and you need more of it. Reduce the anionics accordingly until you have a ratio 2 - 3: 1 anionics to amphoteric. Next, reduce or DEL PolyQ-22, it is redundant. If PolyQ-10 is dispersed properly (1st ingredient in and hydrated 100% before the next) and at the right level (~0.50%), that will be all you need. Remember quats, even polymeric ones, are inherently destabilizing in classic shampoo systems. Also, the first addition after the PolyQ-10 at 70 - 75C should be the CAPB, then the cetyl alcohol & TG, then amide, anionics last. Next, DEL the decyl glucoside; it is only interfering with the rest, not adding anything, plus is a notorius viscosity reducer. Finally, after blending this at 70 - 75C, cool SLOWLY, so slow you get bored.Thanks for your quick answer,sorry I am new in this group,i am not experienced. to be honest i need to rise my awareness about making hair care products because of my job. unfortunately there isn’t any book for studying this kind of information in my country except internet, I try to collect data and then by using them i formulate something i need, however finding those ingredients would be the second problem. oh sorry for my long comments.I am going to follow your advise.thanks alot
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interesting point. i was going to make creamy shampoo with cetyl alcohol and PEG 150 Distearate. i mix them and add to water phase in 70 c. the interesting point is the solution became transparent and clear, however i used cetyl alcohol. i don’t any idea about that. then i made another shampoo with PEG 150 Distearste and add cetyl alcohol at the end of process and it was creamy. would you like to comment ?
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@chemicalmatt Thanks for your helpful comment, It works until now, I extremely appreciate you, I am trying some kind of thickeners. Thanks
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I solved this problem by HPMC, But biphasic problem is still here
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@chemistry8303 Cetyl alcohol is a bit too high. Also, you can add some Carbopol to help stabilize/thicken your system.
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Thanks for your comment, I am struggling with finding appropriate emulsifier, That’s it. Thanks
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Add NACL 0.2-1 ‰ and increase SLES to 10%
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You can replace the quat by GUAR HP
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Andraous said:You can replace the quat by GUAR HP 0.3%
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ketchito said:@chemistry8303 Cetyl alcohol is a bit too high. Also, you can add some Carbopol to help stabilize/thicken your system.
Crbopol dont work at ph under 6
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