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Help! Problem with Ceteareth 25
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The turbidity or the product becomes opaque when I withdraw it from the plastic container in which it deposits and expose it to the open air for a long time (24 hours), the product is still translucent in the plastic containerIs it because of silicon oil and pvp this phenomenon? -
Oh, I see. Well, why are you doing that? I don’t see that there’s anything to oxidise. The fragrance will evaporate and maybe the benzyl alcohol too and it will lose water … it would be surprising if nothing happened wouldn’t it? That class of inertness is reserved for McDonald’s hamburgers.
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Your formula includes Polysorbate 20, Polysorbate 80 and PEG40 Castor Oil … why all 3 to solubilize 0.5% fragrance. You might try cutting out a couple of these.
I would leave the Cocoate in as it can aid in wash-out, but you could probably cut that down to 2%.
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Thank you so much for your advice, I will try all that and tell you what happened.See you later
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@Belassi Do you consider that the color change (translucent to opaque) is something “normal” in this formulation?
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I’m sorry I can’t comment further, this is a product type I don’t have any experience with.
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if it doesn’t happen in a closed container, the product is most likely losing water and drying out in the air
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Exactly @Bill_Toge , it only happens when I leave some of the sample outdoors
But, is there any way to reduce this?
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Start your formula with C-25 @25%, glycerin/pg combined at 15%, preservative, fragrance. You will get a clear and stable product, now you can do the reverse of knock out trials. Add one ingredient at a time and see how it behaves in the formula, mind that silicone or any other polymer like PVP is definitely going to affect the clarity of the solution.
Good luck.-
Hi @chemist77, I was hoping you can share what I can do to get the final cooled down product to have a thicker stronger viscosity? I used the percentages you shared and the outcome is awesome. I just want a stronger thicker feel when i scoop it. Thank you!
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The most simple solution to the product turning opaque when left uncovered is to put the cap back on the jar right after you have used the product.
No offense, but leaving the cap off is kind of like peeling bananas and leaving them on the counter and wondering why they keep turning brown.
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jaja No problem @MarkBroussard But if I wanted to know that in case it is lost from moisture, how could I avoid it?
well, apart from having the container closed
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I don’t know that this can be avoided per se … to reduce it, you would have to include an ingredient that would bind the water to slow the evaporation.
You would have to evaluate the value to you of doing that.
Plus, you do want the water to evaporate when the product is placed in hair for the hold to develop.
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Thank you all for your adviceI did what he recommended and the appearance has improved a lot, apparently it is also normal to dry the surface of the product outside the container for a long time, but it isn’t a stability problem
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I have been testing my product with myself and some of my friendsThey tell me that apparently the fixation of the pomade is a little bad and that after washing still leaves the feeling that it is in the hair. With the above I have some questionsIs it better to use pvp k 30 or k 90? What is the maximum allowed level of pvp in a formulation like this? What could change in the formulation to make the washing a little easier?Thanks so much
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:smiley:
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Aloha) silicone which you use in the product is not easily washed off)
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hello every one
i recommend new hair pomade/ wax formula
Ceteareth 25 25%
Propyline glycol 5%
PEG-400 2%
Kathon-CG 0.1%
Tween-20 1%
Perfume 0.3-0.4%
DM Water Qs to 100 %Process - 1. Ceteareth-25+PG+PEG-400 Heat- 65-70@C
2. DM Water Heat 85-95@C
3. Mix both Phase or Continuous heating or mixing 90-95@C Ceteareth-25 completely disolve. its very stable formula
4. perfume+ tween-20 mix properly
5. than add main mixer perfume blend or kathon-CG or filling to heat material in jar.
very stable formula.any outher help related in cosmetics formulation, please feel free contact.
thanks & Regards,
Somdatt Tyagi
R&D Scientist
Nature Essence P Ltd.-
Should not use isothiazolinone (here Kathon CG) in a leave-on product.
Also difficult to get effective dispersion of small quantities (e.g. Kathon) added to finished product.
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hey @somdatt
What ingredient in your formulation is responsible for fixing to the hair?Could you help me with the questions I ask? Thanks so much -
Hello everyoneI wanna commented that I have been able to improve the “wash” in the fomulation and that apparently doesn’t matter that amount pvp wich that attempt to add, the fixation is maintained medium to soft, therefore a combination with other fixing polymers must be able to increase the Fixing of the Product, now a new trouble has appeared to me.The fragrance next to the preservative should be added at a temperature of approximately 50 ° C but at that temperature and the sample is too gelled so it is very difficult to pack and much of it is lost (it remains stuck in the beaker)I think the solution could be to cut ceteareth -25 down to 5-10%I would like to know your opinion about this “possible” solutionHave a nice day
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If you add the fragrance at a temperature over 50C, you won’t completely destroy it, you’ll just evaporate more of it than you would if you added it at a lower temperature. This will raise the cost a bit, which is something that most of us try hard to avoid.
But…if you have a formula that is working in all other aspects, it might make sense to add some additional fragrance at a higher temperature (to compensate for the increased evaporation) rather than start changing the functional ingredients.
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@bobzchemist Thanks so much
About the preservative, I am using benzyl alcohol (0.5%) and would like to know if at a temperature of 70 ° C this would lose antimicrobial activity.According to the handbook of pharmaceutical excipients, the boiling point of this is 204 ° C and its flash point is above 100 ° C so I think this should not lose any of this in the productIf it is correct what I think, then there would be no problem in adding everything to 70 ° C (Temperature in which packaging is easy) taking into account your advice on an extra fragrance, Right? -
the flash point is the temperature above which a substance can spontaneously ignite: the vapour pressure is a measure of how readily it will evaporate
having said that, from personal experience, I’ve never had an issue with benzyl alcohol at that kind of temperature
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hi,
i wonder if you got sucsess with your formula,You can try just to add 25% ceteareth-25 to 5% Glycerin+PG and complete with distelled water
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what can I use to substitute ceteareth 25 in making water base pomade, cos here in my country there is no ceteareth 25/20.
What emulsifying wax will I use to replace it to get exactly water base pomade, thanks.
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