ketchito
Forum Replies Created
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If you want to use a solvent like Dipropylene glycol, you need to add it at a higher dose. I’m not sure trietyl citrate would do anything at such a low level. If you don’t have silubility issues, you can remove your xylene sulfonate since it can impair detergency and viscosity. A chelating agent if especially usefun in dishwashers…and if you want more foam, you could replace either SLS, CAPB or CDEA for an amine oxide. To boost detergency and viscosity, an inorganic salt can be added (if your system doesn’t get turbid).
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Because in solution, you’ll have free chrolide and sodium ions that could interact with polymer’s ionic groups, shielding them.
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If the formula is settled, the only thi g that comes to my mind is to clean first with some solvents, like mineral spirits, and then do as usual. Now, this is not environmentaly friendly of course ????
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What other ingredients do you have? If you don’t mind using something like Tinogard TL, it might help stabilize your vit e towards UV.
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Hi! Polyquaternium-10 is a cationic HEC, and HEC can sometimes behave in a weird way with glucosides ????
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If sel fin marin is some sort of inorganic salt, then thatt might be the issue, since those opacifiers don’t get along with electrolytes. Try one batch without sel fim marin to confirm.
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Remove glycerin. Reduce shea butter to no more than 1%, and BTMS 85 to no more than 2% (as mentioned, it helps having some fatty alcohol like cetearyl alcohol starting at 3-4%).
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Try removing Polysorbate-20 (soemtimes your surfactant system is enough) and Aloe Vera Extract.
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They might be using Carbopol 674 (https://www.ulprospector.com/es/la/Cleaners/Detail/11384/35242/Carbopol-674-Polymer). I don’t think gums you mentioned could resist an oxidizing agent.
ulprospector.com
Carbopol® 674 Polymer por Lubrizol - Productos de Limpieza, Domésticos, de Marca e Industriales
Carbopol® 674 polymer is a lightly crosslinked polyacrylic acid polymer powder. This polymer provides suspension at low product viscosity and improves f...
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Could you make one run without Decyl glucose and Glucose sorb?
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Yes, but that pH would compromise the stability of your peroxide.
As for the viscosity, chances are you’re not using the right rheology modifiers, and the peroxide is attacking it. There are some grades made for oxidizing bases.
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Since it’s a w/o emulsion, are you adding the water phase very very slowly? Also, w/o emulsions require some inorganic salts for stabilization.
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@abdullah Sorry for the late reply. Phenoxyethanol is fairily soluble in water at the usual dose in cosmetics, so you shouldn’t have any issue to add it at any time, unless your product got too thick during cool down. When added in the cool down, since emulsion packaging is alrrady tight, it’ll go to the free water which is where you need it most, and part will find its way also into the micelles (that’s why you usually experience a viscosity drop).
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Hi. What’s the pH of your product? Peróxido usually descompose faster the higher the pH. Just as a reference, a peroxide based stain remover has a pH of no more than 4.
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Hi. Could you write the proper INCI for Glycol cetearath? Also, it’ be nice to know at least how much of this and of Span 80 you’re using, as well as the amount of your oil phase and some details about your manufacturing process.
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Not the same case, but some emulsions that use both a more oil soluble and water soluble emulsifiers, have them molten in their own phase, to get a more stable emulsion. On that, if you have some fatty ingredients that you need to heat, I’d just add there your vegetable oil, especially if your mixer doesn’t provide enough shear.
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Remove dipropylene glycol. Solvents of this type serve no purpose in these kind of products, and can be impairing your viscosity.
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All polar solvents will cause the same issue to emulsions. Just add it with slow mixing (no shear) between 60-50°C. Since at this stage, your emulsion has some “memory”, it’ll recover…but don’t add it below 50°C.
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My name is Wilson. I have a BS in Chemistry and a Masters degree in Materials Science, with 15+ years of experience formulating cosmetics. I have an independent lab in Peru and I’ve formulated products for both local and international brands. I can take on any project related to personal care, specially hair and skin care. I’ll be glad to assit you in your projects!
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You can take this as a reference of approx percentages: https://www.ulprospector.com/en/la/PersonalCare/Detail/118099/6921068/Foamy-Shampoo-Bar?st=1&sl=391941483&crit=a2V5d29yZDpbc29saWQgc2hhbXBvb10gPiBGb3JtdWxhdGlvbnM%3d&ss=2&k=solid|shampoo&t=solid+shampoo
ulprospector.com
Foamy Shampoo Bar by THOR - Personal Care & Cosmetics
This solid shampoo is suitable for all hair types. With a fresh and clean fragrance, a lightweight application is enough to achieve a powerful and effe...
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Hi. Is this a 2 in 1 SH+Cond bar? For a shampoo bar, it has very low amounts of detergent and high levels of waxes and oils. This might not let the bar foam properly, and force consumer to rub it more than usual, and that would explain why it lasts so little.
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What you wrote at the start was actually your surfactant’s ASM:
10% SLES, 3%cocamidopropyl betaine and 2%sodium cocoyl glutamate and 1.5% decyl glucoside
Your formula in terms of surfactants it’s Ok. I’d suggest you to remove Glycerin (no real benefit in a cleanser) and Decyl glucoside (it’s a good degreaser, but it can be “too efficient” sometimes). This will give a good foam at the end (if you need even more, increase your SLES from 14.2 to 16.0%).
Now, for conditioning, 1% of your Amodimethicone emulsion is not that much. Since you mentioned you experienced some disconfort with it, I’d use DC 1785 (or similar) instead, which is an emulsion of Dimethiconol in TEA-dodecylbenzenesulfonate. Use 2% and up.
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As @chemicalmatt mentioned, it’d be nice to have full INCI names for your ingredients. If PEG-40 is PEG-40 hydrogenated castor oil, then your Polypropylene glycol won’t probably be enough to give thermal stabilization of your viscosity.
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I’d advise you to check the pdf version instead. What you see as two numbers, is just due to the use of two decimals in those numbers.
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I agree with @chemicalmatt. Also, it’d be useful to have more details on the process. For what I see, adding a gum after surfactants would not let if fully hydrate and properly interact with surfactants (I bet high mixing required to add the gum generated a lot of foam). I never had good experiences with xanthan gum in cleansing products (separation was always the issue).