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Great brains needed! SLS free and Carbomer shampoo viscosity issues
Hello! I’ve been formulating and reformulating for the past year and still feel it’s still not the correct viscosity by the end of the formulation.The final shampoo base has not broken but is not the gel like consistency I am wanting to achieve. If there anyone that can help, is it the ingredients, the amount or method I’m going wrong? Any guidance would be greatly appreciated as I’m out of ideas now and can’t seem to complete this myself. I know there’s some amazing brains on this blog! Thanks to anyone who takes the time answer.
Heres the formula:
A water 54.38
A Carbomer silk 100 - 0.6
Neutralised to create base.
B Iselux SFS SB 34.5
B Cocamidopropyl betaine 2.5
Mixed together added A to B
C Glycerine 1
C Guar Hydroxypropyltrimonium Chloride 0.4
Slurred together added to A and B
PH check to ensure within range of blend.
D Quinoa extract in radish root ferment 5
D Artichoke extract in radish root ferment 1
D Polyquaternium 7 1
D dermafeel PA 1
PH check to ensure within range of blend added to ABC.
E Coco Glucoside 0.6
E Coco Caprylate/ Caprate 0.3
E Argan oil 0.12
E Essential oil fragrance 0.2
E Preservative Phenoxyethnaol 0.5
PH check to ensure within range of blend added to ABCD
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2 Replies
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@Jamiemhair Never heard of “Carbomer silk” but cationic guar and anionic carbomer do not play well together ever. This is the root cause of your problem. DEL the carbomer. Then adjust the ratio of your anionic Iselux to amphoteric betaine from 13:1 (!!) to a more reasonable 2:1. Since the free NaCl in the betaine will no longer be crashing the acrylic carbomer, you should find peace and happiness soon.
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Hello sorry it’s Carbopol Silk 100 polymer the manufacturer example formulation for shampoo both contain cationic guar. It also says it exhibits synergistic behavior with salt.
I can certainly carry out a sample test if this corrects it.
The shampoo was aimed for professional salon use would changing the ratio make it too mild ?
Thanks for your input.
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