Abdullah
Forum Replies Created
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@Paprik thanks
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@PhilGeis yes it is anti dandruff leave in low viscosity hair lotion.
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My product has phenoxyethanol, caprylhydroxamic acid, Piroctone Olamine and HCl. pH is 4.1 and cationic. And yes it works well.
I dont like benzyl alcohol, phenoxyethanol is milder that that.
Also caprylhydroxamic acid should be heated, in clod process system it remains undissolved. -
Add 2% glyceryl stearate or glyceryl oleate. This also help with soaping.
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@Pharma very good explanation.
Can you please explain this part a bit more.
“f it’s unmatched to one side, it doesn’t mean too much. If it’s unmatched to the other side it only means that maybe/probably the emulsion is inversed or if not, potentially unstable.” -
You need to mix them then heat it until caprylhydroxamic acid is melted and dissolved and cool it and store it for later use.
Or you can use them in these percentages directly in your product. I use caprylhydroxamic acid first ingredient in one of my lotions which is cationic and i can’t use chelating agents to chelate iron -
@Paprik thanks
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@Paprik yes it has self foaming pump.
Good point about NACL in surfactants.i should search if these other surfactants also have NACL.If it has 1% CAPB then it will have around 0.17% NACL.My point about evaporation was about essence and phenoxyethanol. Essential oils evaporate when heated. Does fragrance oils evaporate too?
It has very strong smell. Maybe it has 0.5-1% essence.Does phenoxyethanol evaporate too because it is a bit volatile? -
@ngarayeva001 so it will be pretty hard to preserve and also not so gentle because of high pH.
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@Perry @Paprik thank you both.
Is it possible that some of these ingredients maybe partially or fully evaporated with water during heating?
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You have to rinse the skin if it contacted with any material even if it is not irritable.
Even if sodium lactate is irritant, that is at 100% pure material. At 5% it doesn’t have any irritation. -
I agree with @Graillotion. The pH of skin is 4.7 so you want to make high pH product if lower pH works better and is easier to preserve?
About emulsifiers
Sorbitan laurate, polyglyceryl-4 laurate, dilauryl citrate makea very low viscosity emulsion.
From this list i like ecomulse more than others. It is table, good skin feel and Avery economical ingredients.
You can purchase the ingredients and combine at this ratio to make it even more economical. -
My biggest eye opener was that most of the ingredients we think as good is not good, and what we think as bad is not bad.
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@Perry ibi add cationic surfactant like BTMS to this, should i aim for ~1% total conditioning ingredients ( cationic surfactants+Amodimethicone) or 1% Amodimethicone and 1 or 2% cationic surfactants?
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@Bax65 thanks a lot
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@Perry thanks a lot
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@Bax65 thanks, very good information.
At what temperature will it form criatals?
Will heating it reverse that?
I am purchasing in 180kg drums not IBC. That is easier to use.And how about ALS
Does it have powder form?
Does liquid ALS also form crystals? -
Bax65 said:@Abdullah - that’s an unavoidable issue linked to the manufacturing of the SLS granulate.
To make this easier to deal with a first pH adjustment should be done right at the beginning with only the SLS in water. Then you will have the lowest possible viscosity.
Once you have added a co-surfatant and/or any kind of thickener the foam will stay even longer.
Final pH adjustment can and probably still needs to be done when the formulation is completed.
Do you have the chance to apply vacuum and have a propeller stirrer running on top of the liquid? Idea is that the rotating propeller will destroy the rising foam when vacuum is applied.Unfortunately i don’t have vacuum available
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@Bax65 thanks
Is there a way to prevent SLS from too much foaming when reducing it’s pH?
For 100g sample it produces like 500ml foam when i add citric acid to it.I don’t know how to handle that amount of foam in large batch.
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What is the problem? I couldn’t get it.
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Your emulsifier also has a big role in your preservative effectiveness.
Check this file.
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@chemicalmatt you mean 50% APG which is 25% active surfactant?
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@jemolian yes it could be.
But as sample surfactants like CAPB or SLS %30 are more simple than shampoo because they are only one surfactant and water and they also need Preservative. So it made me wonder if simple surfactant product is just this one surfactant in water or shampoo is also a simple surfactant product.