

Rebelgreaser66
Forum Replies Created
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Rebelgreaser66
MemberDecember 22, 2017 at 3:56 am in reply to: Doesn’t AMP-Acrylates/Allyl Methacrylate Copolymer work in the formula?What’s the problem with Ceteareth-25?
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Rebelgreaser66
MemberDecember 21, 2017 at 9:46 pm in reply to: Doesn’t AMP-Acrylates/Allyl Methacrylate Copolymer work in the formula?@Bill_Toge Yes, I use a dye but I didn’t write the percentage in the formula because the amount that I use is too small to be determined by weight
ok, if maybe the problem is the loss of water through evaporation, how could this be solved? increasing the percentage of humectants? -
but in the other formula i use a mixture of polysorbates, don’t use PEG 40 HCO and i use beeswax
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No, I only use c-25 as a gelling agentI think you could use polysorbate 20 maybe or peg40 to help emulsify these ceteareth
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why do you use both?
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heat the c-25 in a pot at 80°C and in another pot the rest of the materials at same temperature, after, add c-25 in the other pot slowly
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@Lainee @Bill_Toge
yes, i use PEG-40 Hydrogenated Castor Oil or PEG-7 Glyceryl Cocoate and anyway I should heat the ceteareth apartMy main question is whether these vapors emitted by the C-25 represent any health risk or are toxic
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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? -
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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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 -
:smiley:
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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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thanks so much, i will try it
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@Belassi
Well, I understand that the phenomenon of cremation happens because the oil particles are less dense than the surrounding environment (Water), so they tend to escape the environment and reach the surface of the mixture, and that this Can be solved by increasing the viscosity of the emulsionThe emulsifying wax nf is a mixture of polysorbate 60 and cetostearyl alcohol. The function of the polysorbate 60 is to be an emulsifier and the cetostearyl is an emulsifier and is an agent which increases the viscosity of the mixture (information of “handbook of pharmaceutical excipients”)Then I would only be replacing the function of emulsifier but not viscosity, apparentlyWhat could replace the emulsifying wax nf? (In my country it is difficult to get it) -
Now the original formulation isn’t such a bad idead considering that the ingredients in a commercial product like that are:
Aloe Barbadensis Juice, Cera Alba (Beeswax), Ricinus Communis (Castor) Seed Oil, Mangifera Indica (Mango) Seed Butter, Vitis Vinifera (Grape) Seed Oil, Limnanthes Alba (Meadowfoam) Seed Oil, Emulsifying Wax NF, Carnauba (Copernicia cerifera) Wax, Hydrogenated Castor Oil, Citrus sinensis (Blood Orange) Oil, Fragrance, Lavandula Angustifolia (Lavender) Oil, Tocopherol Acetate (Vitamin E Oil), Phenoxyethanol (and) Caprylyl Glycol
Why the substitution is not adequate? @Belassi -
@Belassi
According to what I understood in that publication, According to what I understood in that publication, the Ewax is the abbreviation that the author gave it in that “formulation” to emulsifying wax nfI replace the emulsifying wax with polysorbate 80 when comparing its hlb value
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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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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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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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@Belassi Do you consider that the color change (translucent to opaque) is something “normal” in this formulation?