Abdullah
Forum Replies Created
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40% sodium hydroxide is very strong. I make 10% of it and even that increases pH a lot very fast.
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Whqt are the ingredients?
What was the pH before & after?
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Is that actual surfactant or active surfactant percentage?
How much salt is this come salt?
You can add less salt. -
You need sufficient surfactant and softening agent for any type of hair.
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Use Glycol stearate instead of distearate.
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If it goes into eye there are more irritating ingredients like preservative, chelating agent and fragrance & other ingredients in your product than pH.
You should avoid it going to your eyes.
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I don’t have experience in hair gel but all my products including emulsions are in flip top bottle.
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If you are are a startup, bottle is better for you than jar in any way.
- it is less expensive
- it is easier to preservative the product in it- high viscosity cream only has more thickener than low viscosity. No other difference. You can reduce the thickeners and save more money.
- easier to make lower viscosity product
- easier to fill lower viscosity product. -
Newtoformulating said:@PhilGeis It’s a jar. I know, I know that’s the worst thing to put my product in but at the moment in this stage of development that’s all I can do. I would love for my formula to be in a tube to reduce contamination but it’s just not feasible at the moment. That’s why I’m looking for a robust preservation system.
@MarkBroussard ok thanks. I will order 1,3 propanediol. Would it make sense to add Peg 40 hydrogenated castor oil to help with solubility along with 1,3 propanediol or just use the 1,3 propanediol?
Why are you not using a flip top bottle. It is cheaper and better than jar.
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Is it supposed to be applied around the eyes or inside the eyes?
If around the eyes then pH ≤4.8 is better.
I don’t know about inside the eyes.
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Yes
Got it
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I don’t have explanation for it. A chemist here told me to do so, i did and got the results. I don’t remember it correctly but i think it didn’t work in anionic emulsion.
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@PhilGeisis benzyl alcohol anti bacterial or anti fungal?
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PhilGeis said:Here’s the link - https://www.jidonline.org/article/0022-202X(86)90008-4/pdf
I’d not get carried - no standard deviation in this or Fig 1.It says This page does not exist.
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PhilGeis said:Wouldn’t the Na salt be more cooperative?
Generally it is.
Only advantage of sa is you can use small amount to reduce pH too.
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@vitalys thanks
Is this photo from a book? -
Mikrokill COS will be good at pH ≤5. At pH 7 look for PhilGeis suggestion.
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It was for viscosity and stability.
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I forgot. I used NACL too in cationic emulsion. It pased three months puting bottle in window, hot in day and colder at night stability test and pased 3 cycle freeze Thaw cycle. I think this product is very much stable. maybe the combination makes it stable.
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It was just an experiment to see what happens ????. I was not going to use or sell that product.
I love doing experiments and as I usually purchase ingredients in bulk, I don’t have problem doing a lot of experiments so i mix whatever ingredients i have in different ways that comes to my mind just to see what happens. Some times i get pretty good results but most of the time i learn what i should not do.
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Fekher said:You are welcome @Abdullah just I want to know for that type of cream your emulsifier combination is only cationic surfactant + fatty alcohol?
Cationic surfactant+fa+ petrolatum+ glycerin+ preservative+ fragrance+ water.
pH adjusted with lactic or citric acid.No unnecessary or marketing ingredients ????
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I once easily dissolved up to 14% salicylic acid in 10% surfactant solution. Product was clear. Didn’t add anymore to not waste the ingredients.