David
Forum Replies Created
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Cosmetic product development and manufacturing ❤ Berlin
Private LabelSkilled R&D
Low MOQ
EU compliant formulations
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Yes there are very clear rules. In EU you need to check the
Regulation (EC) No 1223/2009
https://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:32009R1223&from=EN
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Although it really looks like a bad shampoo, I have to give them credit for marketing it with SLES as unique selling point. I can’t remember to ever have seen a shampoo marketed with the actual ingredient that cleans the hair and creates the foam.
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Isothiazolinone 3.3%! The maximum safe concentration in ready for use preparation of methyl-Isothiazolinone in EU is 0,0015%. Actually the formulation above is more dangerous than applying 100% preservative Euxyl K100 or Kathon CG on your skin!
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@Abdullah the chart shows flocculation and not deposit on hair. The two may be related but deposit on hair depends on other parameters such the electrical charge.
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@Tony11 - yes
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I was most surpriced that there was very little reliable scientific litterature about cosmetic chemsitry in general. The most simple questions such as: which ratio of surfactactants should I use? Is salt good or bad for hair in a shampoo? which “quat” is most efficient in a conditioner? were difficult to answer unless you have empirical knowledge.Then I learned these “real facts” are muddled due to the focus on claim ingredients and other commercially driven research of ingredients
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I would say…at least 3834068 formulations per year. No kidding… This depends very much on what has to be done and how you define a project. Some projects/formulations are done in days, others take years. If you feel you run of time, first you should ask for is an assistant who can help you with routine tasks such as stability testing and sampling of formulation variants.
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Salt free is not only fear marketing, it is also false. Many surfactants inherently contain salt, such as cocamidopropyl betaine, which normally contains around 5% NaCl, although often “forgotten” on the list of ingredients. Then you have ingredients such as Sodium C14-16 Olefin Sulfonate, which is the sodium salt of Sulfonic acids, C14-16-alkane hydroxy and C14-16-alkene.
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@Henry capb already contains salt. Probably cocoamidopropyl hydroxysultaine too. Check the CoA
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No.
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A formulation is not worth more than it sells. There are beautiful formulations available online for free and quite lousy secrect ones no one can buy for money. The 5% that @MarkBroussard mentioned is a quite normal fee. You have to estimate the value of your formulation yourself by “sniffing” the value of your clients sales. Anything between €500 and €25000 could be appropriate
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@Abdullah we have made some stable conditioners with EDTA/citric acid/ cationic combination - the order of adddition is important though. @ngarayeva001 - the reasons may be economical or just random. Can’t remember any formulation where one acid performs better han the other..
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use carbopol
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It is not a troll…cosmetics rules! -
Ok. Thanks @Bill_Toge
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Unless you have overseen some raw material differences when scaling up, the usual suspect is processing time. Warming /Cooling and mixing 150kg takes much longer time than 150g which gives more time for unwanted chemical reactions to take place.
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You can’t check pH of a W/O, since it is not defined. You can however, check the pH in the waterphase before making the W/O emulsion.
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The formulation would help.
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Best way to find out: measure, add an ingredient, measure, add an ingredient, measure. Or the knockout method. It is difficult to say which ingredient it is, even for chemist, since the list above is a mix between trade names, INCI and chemical names.
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@natzam44 - Hi, thanks, I am very aware of the alternatives, however the question was if this raw material is available other as DIY.
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You need to be a bit more specific to get a good answer. Skin and hair care can mean anything from make up powder to aerosol hairspray. Location, quantities and budget help as well.
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Disperse it in glycerin or propylene glycol first
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You probably won’t need oleth-5 either for a start. Ceteareth25 and peg40 hydrogenated castor oil is more than enough for this type of formulation.
