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Liquid hand soap formulating problem
Hi, im a new in a liquid hand soap making process. I triy to replicate one of the product that already been sold in the market. After a little change to cut the cost, the result is still quite similar with a good viscosity and good foam.
But the problem occur after i add fragrance oil, the viscosity is decrease so much. And after i try the soap, the fragrance is not strong enough.
Here is my formulation per 100ml:
Aqua qs.
SLES 6 gr
Cocoamidopropyl betaine 3 ml
Sodium chloride 2,3 gr
Sodium benzoate 1 gr
Glycerin 1 ml
Cocoamide DEA 1 ml
Glycol disteartae 1 ml
Fragrance oil 0,5~1 ml (different for each scent)
Citric acid 0,2 gr
Aloe barbadensis extract 0,2 ml
EDTA 2Na 0.1 gr
Phenoxyethanol 0,1 ml
And this is the ingredients of the reference product i tried to replicate:
Aqua, SLES (4,28%), Cocoamidopropyl betaine (2,90%), lactic acid, sodium chloride, sodium benzoate, polyquarternium-7, glycerin, tetrasodium glutamate diacetate, benzotriazolyl dodecyl p-cresol, parfum, mel, pottasium sorbate, aloe barbadensis.
So, this is my questions:
- Is it possible to counter the viscosity problem without adding any thickener? And how?
- If i have to use thickener, can i use hydroxypropyl methylcellulose (HPMC)? And when should i add hpmc in the process?
- Is there any other alternative to make the scent more noticeable and last longer in skin without adding more parfume?
- Is it necessary to add polyquarternium-7?
- Is my formula good enough? Is there anything i should change or improve?
- How can the reference product maintain its viscosity with the lower amount sles?
Im sorry for this so many questions. I’ve been face a lot of issues since the first time i try to make this soap (like the foam doesn’t want to rid off after washing, etc) i really hope i can get the answer here
Your help is highly appreciated.Thank you so much!
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8 Replies
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1. That’s a pathetically small amount of surfactant. So, NO.
2. You will have to experiment.
3. Loss of viscosity caused by adding fragrance is a usual problem.
4. No.
5. No. Yes.
6. No idea.
also, sodium benzoate is more than twice as high % as normally used. -
Belassi said:
1. That’s a pathetically small amount of surfactant. So, NO.
2. You will have to experiment.
3. Loss of viscosity caused by adding fragrance is a usual problem.
4. No.
5. No. Yes.
6. No idea.
also, sodium benzoate is more than twice as high % as normally used.Thank you Belassi!
how much should i add the surfactant?I’ve tried using 10% of sles, 3 ml CDEA and 2 ml CAPB per 100ml, but the foam is hard to get rid of. The foam is keep forming with just a litlle scrub. -
Foam is what you want, surely, in a hand soap. At least I do. I use an ASM of about 10% for pump-bottle soap.
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What does ASM stand for?
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ASM stands for active surfactant matter. It is very important to have correct and sufficient proportion of primary and secondary surfactants in your formulation. I once formulated a soap which resulted in sticky feeling after washing hands and the soap still remained on my palms even after rigorously rinsing hands with water.
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Dear Murtaza could you suggest which ratio is good for Sles- betain- coco Dea and Coco glucoside for hand soap
Best Regards -
Sorry for the late comment on this discussion. Dear @MurtazaHakim, I also experience the same problem where my hand wash become sticky and still foaming after rinse. My formulation consists of SLES (30%):CAPB (30%):DEA with ratio 4:1:0.5. Although I reduce the ratio to 3:1:0.5, it is still foaming when I rub my hands after rinsed. Do you have any idea why it keeps foaming? Thank you in advance
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. Increase the phenoxyethanol to %1
. Reduce the sodium benzoate to <0.5For viscosity
Remove glycerin
Reduce the fragrance
Increase the betaineAnd as belassi said, increase the total amount of active surfactant to around %10
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