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Polyquaternium-7 and PEG-7 glyceryl cocoate making handwash sticky?
We’ve been knocking-down ingredients to find out the culprit of stickiness in handwash.
60 % water
0.1% EDTA -Na4
13% Texapon N70 ( = 9.1% active SLES)
1% Cocamide DEA
0.5% PEG-7 Glyceryl cocoate (Cetiol HE), added to try its refattening properties
0.25% Polyquaternium-7, added to try its skin conditioning properties
10% Cocamidopropyl betaine solution ( = 3% active CAPB)
0.5% Salt fully dissolved in water (and even this gets it too viscous)
0.5% Erythritol + water qs to 100%
qs to ph 5.5
Preservative to be added at latter stages, once test runs yield satisfactory sensorials.
(local laws allow the use of CC-DEA and EDTA, might replace them at a latter stage)So far, everything seems to be causing stickiness in this formula
Took out Erythritol, and it helped a bit with stickiness. Although the whole purpose of this formula was to test Erythritol, which seems to give interesting hair and skin smoothness.Both PQ7 and PEG-7GC seem to worsen tackiness, especially if both are combined.
Literature doesn’t mention them as being especially tacky, do they? -
5 Replies
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The ASM looks to be very low.
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Never mind. Were you saying the values in ( ) were after calculating the ASM?
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formula is 14.5% missing items
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@RenKB yes the quantities in ( ) are net ASM
@Belassi the remaining water is topped off in ‘water qs to 100%’
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Knock out experiments
pointed out that Cocamide DEA is sticky, even on its own
PEG-7 Glyceryl cocoate is a bit sticky too.
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