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shower gel formulating
hi sir i want to make a clear shower gel my starting formula is below
if anything wrong with it please suggest me and how can i make it more better
water to make 100
SLES 8%
Cocobetain 4%
CDEA 1%
carbopol 940 0.2%
Sodium Lauryl sarcosinate 3%
Glycerine 1%
Nacl 0.5%i want to remove slippery feel please help me
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9 Replies
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Question #1 why do you need carbopol?
Question #2 surfactants percentages, are you using active matter or is it 8% of SLES as supplied?
Question #3 preservative? -
Make sure it’s 8% active SLES, and not 8% as-supplied as SLES often comes in 70 and 30% active, never 100%
Use CAPB insted of coco betaine
Make sure active CAPB is a third (or more) of active SLES.
Make sure that CDEA is not leaving a sticky afterfeel.
Carbopol ain’t needed. You can thicken it with salt.
You need to make a salt curve to check the proper amount needed to thicken it. With CAPB and CDEA it should be less than 1% salt required.Remove the glycerine. It does nothing and reduces foaming and viscosity.
A preservative is needed.
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@ngarayeva001
Q#1 for thickness
Q#2 the percentage of SLES is 70% as supplied and percentage of Cocobetain is30% as supplied
Q#3 i have used DMDM hydantoin 0.2% -
@Gunther
sir SLES 70% and i have used as supplied
ok am going to remove CDEA
maybe when i have not use carbopol the temperature effect the thickness at 40 degree Celsius
ok am also going to remove glycerine -
can anyone tell me how can i reduce temperature effect on shower gel
its fine when i put it at 30 degree Celsius but viscosity going to decrease as i increase temperature
can i control it -
It’s not CDEA, you simply don’t have enough surfactants. You need 15 to 20% of active mass. You currently have just 8%. It doesn’t cleanse properly. Recalculate it and make sure that CABP is > than third of SLES as Gunter advised. I usually go for 50% but that could be overkill.
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UsmanAli said:@Gunther
sir SLES 70% and i have used as supplied
ok am going to remove CDEA
maybe when i have not use carbopol the temperature effect the thickness at 40 degree Celsius
ok am also going to remove glycerineIf that’s 8% using a 70% active ingredient raw (i.e. Texapon N-70) that’s 5.6% net active SLES. That’s too little and that’s not going to thicken properly.
So you’d need something like 8% active SLES. You’d need 11.43% Texapon N-70 to get 8% net active SLES.
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Here is your calculation:
INCI Concentration Use from the bottle Active Matter SLES 70% 12% 8.40% CAPB 35% 14% 4.90% Sarcosinate 30% 8% 2.40% Now the total matter is 15%. Add CAPB in the very end. You will not even need carbopol, it will thicken with salt.
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