[Farouk]

I just downloaded it, it is very interesting. apparently , no longer looks the CMC but other parameters such as the isotherms that are more significant. I would be happy to read it. Belassi thank you again

[Farouk]

Thank you to all of you.

I’ll get the link you posted Mr Belassi . Also thank you for that link Mr Perry.

[Farouk]

no ideas

[Farouk]

Hello.
now I have prepared liquid soap based on saponified oil with KOH to have a soft soap. I added the SLES for foam. My liquid soap is not transparent , it is pearly with ph 7, fragrant and leaves a good feeling in the skin of hands . I’m happy with this natural-synthetic association. I also noticed that the hot water favors the irritation of the skin with liquid soap.

[Farouk]

I think the effect on the skin of a saponified oil is different from that of a synthetic soap as Sulfates or other.  

[Farouk]

Thank you Bobzchemist and Belassi.

[Farouk]

Bonjour.

Thank you for your comments and advices Mr. Belassi. I personally, liquid soap dries my skin and i do not want him to do for the other. My question is : what products to avoid in a liquid soap formulation, or otherwise, what is the proportion not exceed for these products.

Thank you.

[Farouk]

Hello everybody.

What are the precautions to be taken in the preparation of a hypoallergenic liquid soap.

Thanks.

[Farouk]

Hello Everybody.

Can we not put preservatives in a liquid soap since Customer Review does not reaches ? The preservatives could be a result of the problems caused to the skin of hands : dryness, irritation, itching.

[Farouk]

Hello Mr Belassi.
my question is : why my liquid soap dries hands. This soap is composed of :
SLES 9%
CAPB 4%
Coco glucoside 1%
Cocamide DEA 1%
Glycerin 2 %
Katon CG (preservative) 0.1 %
cirtic acid (ph~6)
Fragrance
water

Is there a problem in the proportions ? is this sulfates aggressive effect ?
thank you.

[Farouk]

Hello Mr. Belassi and thank you for your responses.

I hope too. But my wife and daughter had the same effect on their hands :
drying with small cracks appear in the fingers levels.

[Farouk]

Ecosense 919 or Coco-Glucoside is a vegetable-based. I have put 0.1 % of Katon CG as preservative.

[Farouk]

Hello everyone,

I prepared a liquid soap based on 
SLES (9%), 
CAPB (4%), 
Glycerin (2%), 
Ecosense (1%), 
Cocamide DEA (1%), 
NaCl, Fragrance, Citric Acid (for PH~6).

Why my liquid soap dries the skin of hands ? thank you.

For me CPAB reduces the aggressiveness of SLES, glycerin and ecosense soften the skin of hands. What is not respected in my formula ?