ozgirl
Forum Replies Created
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It is my understanding that it is the LABS acid that causes the product to be classified as corrosive (with the hand burning symbol), although the free sulfuric acid would also contribute. The other specifications really don’t make that much difference.
https://echa.europa.eu/substance-information/-/substanceinfo/100.079.513
Once you neutralize the LABSA then your classification is then based on the neutralized product. -
I have not experienced this with Sodium Lauroyl Methyl Isethionate surfactants. In my experience most surfactants are free-rinsing and don’t stay on the skin.
Perhaps if you share your complete formula and process you might get some more suggestions.
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LABS Acid should be neutralised when used in detergent formulations using Sodium Hydroxide or TEA or similar. There should be no issues with burning when it is neutralised.
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This preservative is sold under the trade name Tinosan SDC. It is my understanding that the products need to be protected from light.
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I would recommend using a combination of ethanol and distilled water as the base. This will allow you to reduce the amount of Polysorbate 20 that you will need, improves quick drying characteristics and depending on the amount of ethanol you use may also be self preserving. I would not use fractionated coconut oil as nobody wants to be spraying oil onto their linen.
You could try adding a fragrance fixative like Glucam P20 (Lubrizol) but your best option is to choose fragrances that are long lasting.
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Rosemary oleoresin extract can be used as an antioxidant to slow rancidity in oils.
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Did you need to shake this product before use. It would usually need a solubilizer for the essential oil and/or some ethanol to make it a complete product.
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This formula does seem to be an industrial grade formula for a detergent. When I searched Antisol it appeared to be an industrial grade CMC. I am assuming that when you are referring to sulphonic acid you are actually referring to something like Dodecylbenzene sulphonic acid. This is largely used in detergents rather than in personal care. Also it is best to present your formula in percentages.
Try checking the UL Prospector website for starting formulas. You should find several hundred formulas just for shampoos.
You can also buy shampoo base blends from some suppliers that you just need to add water, preservative and fragrance to to make a complete product.
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@mikethair for small quantities (<5kg) try Aussie Soap Supplies. For larger quantities (>20kg) try Ingredients Plus (for BASF proteins) or Chem Supply (for Croda proteins). We only pay between $AUS 20 and $AUS 50 /kg for wheat and oat proteins.
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Not sure about Rice Protein but we pay significantly less in Australia for hydrolyzed wheat proteins. Even from a reseller you can get hydrolysed wheat proteins for ~$75/kg.
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The cocamidopropyl betaine seems a bit high to me but I am not sure what actives concentration you are using.
What happens if you reduce the pH to around 6?
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If you are that adverse to certain preservatives you could switch to a solid surfactant (which are less likely to contain preservatives) but these products generally require much more energy/heat to dissolve.
I think BASF sells ALS with a benzoate preservative. You just need to contact different suppliers and ask for ALS with a preservative that meets your needs.
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Yes we found it effective in our product.
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Can the product be transferred to the tubes after it has cooled or at least mostly cooled? It sounds like you need to keep mixing the entire time the product is cooling to ensure that the zinc oxide doesn’t settle out.
What temperature are you heating to? Try heating the beeswax with the oils and heat to about 10 degrees Celsius above the melting point of the wax.
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We used Dehyquart 4046 in a hair conditioner for a number of years but had to reformulate when our supplier increased minimum order quantities and we could no longer justify using the C4046. We now use BTMS and have had no customer complaints after making the change.
Check the MOQs before requesting samples.
Hope this helps.
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@Belassi - It depends on your application.
I was working with TR-2 because I was trying to incorporate some botanical extracts and oils into a facial serum. TR-1has higher viscosity but was not recommended for ionic systems.
https://www.lubrizol.com/en/Life-Sciences/Products/Pemulen-Polymeric-Emulsifiers
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deci-millimeter
This might be of interest
http://www.usp.org/sites/default/files/usp_pdf/EN/USPNF/usp-nf-notices/gc_1912_in_pf_43_2.pdf -
This preservative is used in most of the major shampoo, conditioner and hand wash products in Australia. It is also used in many dish washing liquids and cleaning formulations as it is cheap and works well at low concentrations.
It still appears on the list of allowed preservatives in Europe. http://ec.europa.eu/growth/tools-databases/cosing/pdf/COSING_Annex%20V_v2.pdf
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You will most likely need a solubiliser/emulsifier to ensure that your fragrance,tea tree oil and vitamin E are incorporated.
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I have tried the Permulen polymeric emulisfiers (Lubrizol). These worked well and were reasonably easy to use. Unfortunately the product never made it to market due to other factors but the emulsifier was good.
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Perhaps we could have a category for “Formulation - Beginners and Students” so that the more basic student and beginner questions could be put in here. This would allow others to have an idea of what resources/materials/equipment are suitable when answering questions.
As for rules the “if you can’t say anything nice, don’t say anything at all” is probably a good place to start, followed by please search the forum (and google) before asking a question.
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I made a facial oil with a blend of Caprylic/Capric Triglycerides and Squalane (and some other oils) with great results. My initial formula was based only on Squalane but due to cost I replaced some of the Squalane with Caprylic/Capric Triglycerides with no major changes to the product.
Try making one batch with all Squalane and one with all Caprylic/Capric Triglycerides and see if there are any noticeable difference.
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The usage level of BAC will depend on if the product is a concentrate or a ready to use product. Your product will also need to pass the tests and meet the regulations for disinfectants in your country.
Most hard surface cleaners are just cleaners and then the disinfection is done as a separate process. If you choose to combine the two then the tests you need to pass are usually more involved.
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@Bobzchemist - there are a few of us here that have experience in these areas but when newbies demand formulas and procedures with no evidence of having even attempted their own research we won’t be offering help.
@Bassam - Please research yourself and refer to the thread on requesting help (https://chemistscorner.com/cosmeticsciencetalk/discussion/1070/rules-for-requesting-formulating-advice-help#latest). Google is very helpful, as are raw material suppliers and websites such as UL Prospector.
