Abdullah
Forum Replies Created
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@ozgirl can you tell us what was the product, pH, packaging, packaging size and and preservatives on those products that got contaminated?
I use CHA with piroctone olamine, phenoxyethanol and EDTA as preservative.
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Purchase LAE i powder form and dissolve it in glycerin at 20%. It will be easier to use this way.
Use it with phenoxyethanol.
It is very effective for acne in leave on product.
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What is INCI names?
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It depends. If nothing in your formula needs heat them it will be ok.
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I make a 20% EDTA solution and use that.
Use the preservative at highest amount allowed
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Let us help you.
What other emulsifiers and surfactants do you have?
Yes, surfactants that we use in shampoo.
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Po65 has 34% APG surfactant
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What is your pH and what is your target viscosity?
Poly glyceryl 4 laurate creates very low viscosity emulsions.
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They are the same
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You mean those white things?
Can you explain your preparation method and pH!
Maybe you are not melting them properly before homogenization.
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In my opinion the best option is a clarifying shampoo + a conditioner
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@ketchito i also add phenoxyethanol the product is a bit hot because it takes to much time to dissolve in cold water or emulsion but when you said emulsion memory, will it not go to emulsifier phase rather than water phase if we add it between 50-60°c?
If it goes to emulsifier phase the will it not make it less effective preservative than it being in water phase?
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1%( 0.2% active)
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If your emulsifiers need heat then you should heat the oil phase too.
It is only 5%. What is the benefit of not heating it?
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It is cold and hot water soluble. Add 1% active surfactant in water phase. Some of them have high pH so adjust pH.<div>
You can add olivem in oil or water phase and see which one do you like most.
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Ok
Reduce 1% Olivem and add 1% Caprylyl/Capryl Glucosides and see if the viscosity has dropped enough.
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Sorry, my mistake. I wrote it the other way around. It is 71% water and 29% total solids. 12% glycerin, 4% emulsifier and only 0.6% benzyl alcohol was included as preservative in example formulas
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I saw a patent and It had 12% glycerin and ~25% water in that cationic emulsion.
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Yes
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They have 12% glycerin.
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pH 4.3 is better than 5.
Why are you not using some petrolatum and glycerin instead of those butters?
Make a batch with 10% petrolatum and 10% glycerin and see how it works for very dry skin.
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I made two samples, one 10% STPP in hot and one in cold water. The one in hot water dissolved properly with low speed mixing but the one with cold water STPP didn’t dissolve until i heated it a bit.
These samples were made in glass pot. Surprisingly this time after adding sodium hydroxide, it didn’t precipitate.
Also, after adding 10% STPP in water, pH was around 7. Is it normal?
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ALS, sci, scg and an amphoteric
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No it will not and it will be difficult to thicken too.
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To what degree c you heat them and what is the homogenization speed and batch size?