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Shampoo too thin with PEG 40 Hydrogenated Castor Oil
Good day everyone! I made a shampoo with Rosemary extract and used PEG 40 HCO to solubilize it. However, it became hazy and too thin. I used CMEA, CAPB and salt to thicken but it won’t get any thicker. Any suggestions on how I can improve the viscosity? It comes out watery. Below is the formula
CAPB - 15%
Sodium Coco Sulfate - 8%
PEG 40 HCO - 5%
SLES Gel - 3%
Sodium Chloride - 3%
Polyquat 7 - 2%
CMEA - 1%
D-panthenol - 1%
Fragrance - 1%
Tetrasodium EDTA 10% - 1%
EHGP - 1%
Rosemary extract - 0.5%
Water - q.s.
Citric acid - to pH 5 -
7 Replies
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Not enough active surfactant. Too much PEG40.
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And far too much salt.
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yes and if coco sulfate is 8% active raise to 10-12%-and lower PEG 40 to 1%-also do a salt curve as you are in overkill :
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Thanks everyone for your inputs. Total ASM for the formula is 14.19 to 14.2. I read that shampoos should have max 15. Can I still push it further and go above 15 safely?
ASM
Sodium Coco Sulfate 95% - 7.6
SLES 70% - 2.09
CAPB 30% - 4.5For PEG 40, is 1% enough to make a clear solution with 0.5 rosemary extract?
For the salt, I added at 0.2g increments and eventually maxed out to 3% and it never got any thicker.
“Too much PEG40.” - what’s the common percentage usage for PEG40?
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“For the salt, I added at 0.2g increments and eventually maxed out to 3% and it never got any thicker.” In that case 3% is not necessary. you should do the salt curve from 0.25 to 3% and check the viscosity peak.
You may use a gelifying agent as well -
Hello,
i have the same problem.
Can you do it?
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Guys, CAPB is amphoteric and becomes cationic at ph below 7. SLES is anionic. Could this be a reason?
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