em88
Forum Replies Created
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To solve this problem, first we have to understand what “weak in mathematics” means.
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Fekher said:Can potassuim-beewax used as an emulsifier or even TEA-beewax in place of borax-beewax ?
@Perry @Dirtnap1 @Chemist77 @ngarayeva001 @Doreen @chemicalmatt @pepe @MarkBroussardI don’t see why you can’t use it as an emulsifier.
The final pH should not be a problem, but if it is, you can use potassium salts with weak acids. -
What is the viscosity you are looking for?
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What carbomer are you using from Lubrizol? They have a wide variety of carbomers, and most likely they offer something with higher viscosity. For example carbopol 980 NF should give very high viscosity gels.
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smok said:em88 said:Lanolin is w/o emulsifier. Make sure the water phase is up to 1/2 of lanoline quantity and you are good to go. You can add up to 5% cetylic alcohol if you want to incorporate more water.
That is a very easy emulsion, if you are having problem with this kind of formulation I’d strongly suggest to learn more.realy you understand mewhat you suggest me to learn
Learn about emulsions.
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pepe said:MarkBroussard said:I am currently working on a new cosmetic product line that are: Ingredient-Free
Where is the like button…
I was actually thinking for the same thing when I red that post. Lol
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Lanolin is w/o emulsifier. Make sure the water phase is up to 1/2 of lanoline quantity and you are good to go. You can add up to 5% cetylic alcohol if you want to incorporate more water.
That is a very easy emulsion, if you are having problem with this kind of formulation I’d strongly suggest to learn more. -
Muhammad7 said:
Get a sample of natrosol 250 hhx, you will have to add less than 1%
You can check here the difference: https://www.ashland.com/file_source/Ashland/links/PHA18-101_Natrosol_250_HEC_Formulating_elegant_liquid_and_semisolid_%20drug_products.pdf
Pay close attention to the grade you are using. You can go for 2% with your grade. -
Natrosol 250hhx
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Use a higher polimer chain of hec.
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I’m not familiar with ethnic hair in particular, but pH 8 is high. You should go for 5.5 to 7. I’d recommend you to use an acid like, lactic acid or citric acid to lower the pH and in the same time the viscosity will increase. Too much salt will dry the scalp which is not ideal.
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MarkBroussard said:I am currently working on a new cosmetic product line that are: Ingredient-Free
After that add package free and you have a winner strategy.
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Dr Catherine Pratt said:What do you all think about a toothpaste without surfactant no foaming action?
I’d totally try it. I don’t like when the toothpaste foams too much
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Polysorbate can be used as a solubilizer, in that case you can mix essential oils with polysorbate. This is very common in adding fragrances in shampoos.
While emulsifiers (including polysorbates), I add them in the external phase of its specific type. O/W emulsifiers in water and W/O emulsifiers in oil. -
KingRoland78 said:What phase do I add the polysorbate? Water or oil phase?
Water of course.
Add the essential oils at RT and check the results -
If the previous sample you made has not the viscosity you are looking for, you can add in steps 0.25% salt till you get what you are looking for. But pay attention, at some point the viscosity will drop even if add more salt. Check about the salt curve in Perry’s blog (chemistscorner.com)
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Glad to hear it turned out OK. Well , in that case I can only say you should try with 5% glycerine and see the difference. It is only a matter of feeling at the end.
The fragrance often decreases the viscosity. One more thing to check out is the pH. I’m pretty sure the pH is over 7, probably even over 8. If you use acidic ingredients, like citric acid or lactic acid you can adjust the pH and in the same time increase the viscosity.
Also take in consideration to decrease the quantity of your fragrance. -
Salt is too much. I’d decrease it to 1-1.5% (depends on the viscosity you are looking for). 7% glycerin is too much in my opinion. Maybe 3%?
If you are working with SLES 70%, I think you should increase a little the surfactant concentration, probably 10-15%
I think your formula will not foam good enough. -
The fact that you have sles 70% (or less, not solid) is even better.
Since you are still learning, I’d suggest you to post your formula here. I’m not sure if the percentage of each ingredient is correct. -
A basic shampoo costs less than $0.5 including package (primary and secondary) in an industrial scale. I don’t know where you are from ,but is hard to believe your statement.
I’d suggest your to keep getting more knowledgeable. Parabens are solubile in hot water. If your process is cold than, Parabens will not dissolve.
Your process of production is way off the right way.
Heat water at 80C, add Parabens stir till you have a solution, drop the temperature to 70C and add sles. Keep stirring till you have a clear solution After that decrease the temperature to 40C add edta and stir til it dissolves. After that add the other ingredients at room temperature ending with sodium chloride -
Kioko said:I always melt the methyl in the glycerine before i add water and the acv. Phase A has Sles,sodium chloride and the edta.However,the end product always has a white residue at the bottom with a few solid particles that i have to discard.
What am i doing wrong guys? Is it the propyl or the sodium?
Well, I don’t know how do you melt methyl (which I probably guess you refer to both parabens) in glycerin, but my question is why? You can dissolve parabens in water very easily just by heating water at 80 C. Why SLES and sodium chloride are in the same phase? Are you trying to ease the process of dissolving SLES in water?
Regarding acv, I always would use bcv instead!
“What am i doing wrong guys?”
The whole process looks wrong.
“Is it the propyl or the sodium?”
I don’t know, you haven’t mentioned propyl anywhere. Sodium what? Whatever sodium it is, it depends on the quantity you are adding. -
Get an overhead stirrer with a stand.
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I’m missing your question? Why don’t you just test that formula? It looks very simple.
In my opinion you can remove Phenoxyethanol.
Why not increase the pH with sodium lactate, why use TEA? -
I think the second formula should be more stable.
Both formulations are o/w. In the first formula you have added more w/o emulsifier (Glyceryl Stearate) than o/w emulsifier (Sodium stearoyl lactylate) which can destabilize the emulsion over time.
You should run the stability test anyway. -
You will need an apparatus to measure the viscosity. You can’t do it at your home with a stick and a rock. There are other alternatives of viscosimeters that don’t use a spindle.