sarcosinate :-)

Hi all,
so a discussion on another thread made me want to revisit the issue of formulating a sulphate free shampoo based on commonly available surfactants locally. I used the following:
sodium lauroyl sarcosinate 24%
CAPB 8% - so to stay in the 1:3 surfactant holy grail
Lauryl glucoside 5% / and or disodium cocoamphodiacetate
get an ASM of slightly over 11
for foam boosting i used CDE 1% - no cmea available without import from BASF
thickening PEG-150 disterate 1%
some peg-7 glyceral cocoate  1% - slightly cheaper than the lamesoft po65 i have in the lab
poly quat 7 -1%
1 % glycerine
1% euxyl PE 9010
0.3 % fragrance 
some citric for ph
0.1 of a chelating agent 

so the foam is not to great and i struggle to thicken it properly without using a polymer or a gum. i have tried ethylene/sodium acrylate copolymer on the second batch but was not to impressed with the added thickness its supposed to give me

any suggestions on how to make this better?


  • Decyl Glucoside is a great foam booster (it thins out the product though). I think you can up % PEG-150 Distearate to 1.5%
  • Bill_TogeBill_Toge Member, Professional Chemist
    get rid of PEG-150 distearate and use a high-viscosity grade of hydroxypropyl methylcellulose (Methocel) instead; in addition to the the thickening effect, it also boosts the foaming of surfactant-based products
    UK based formulation chemist. Strongest subjects: hair styling, hair bleaches, hair dyes (oxidative and non-oxidative) I know some stuff about: EU regulations, emulsions (O/W and W/O), toothpaste, mouthwash, shampoos, other toiletries
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