ozgirl
Forum Replies Created
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In the EU you cannot use Salicylic acid in products for children under 3 (except for shampoo).I think this is due to the potential for salicylate poisoning in small children through dermal exposure.In Australia the most popular teething gels for babies contain choline salicylate. -
Zinc Pyrithione turns blue in the presence of ferric ions.The background section of this patent has more information. https://patents.google.com/patent/US5883154A/en
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Have a search for Ernest W Flick’s Advanced Cleaning Product Formulations books as they contains lots of basic cleaning product formulations from lots of suppliers. You can usually find a free pdf copy if you can’t access the original books. It can give you guidance of concentrations of standard ingredients by looking at other formulations.
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What would be the be benefit of adding more than required to increase viscosity as you run the risk of hitting the other side of the salt curve.The best way to increase viscosity would be to increase the surfactant actives.Too much salt might also cause corrosion of metals in the washing machine.
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Not sure where the information about the flash point came from but on the SDS I have it is listed as having a flash point of greater than 93 C. This is the cutoff value for flammable liquids so it just means it is not a flammable liquid.I usually just melt it around 70 to 80 C with the CAPB which works well.
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It is probably the Eumulgin SG that is not melting rather than the Emulgade PL68/50. I think at best it only disperses in the oil phase.The Eumulgin SG can also be added to the water phase.
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From memory I think that Amor All is silicone based. There are probably patents available for this product that would give you that information.Definitely check out Dow for formulation guidance. Wacker Silicones might also have some information too.Try using a combination of low HLB and high HLB emulsifiers to emulsify paraffin oil. https://www.lankem.com/post/the-hlb-concept
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mikethair said:ozgirl said:Are you certain it is cocoa butter. Cocoa butter should be a solid at room temperature. Melting point 34-38 C.OK, you have nailed the problem. The so-called Cocoa Butter has a melting point of 62 C. And once melted it won’t solidify on cooling in my AC formulating room (24 C).Have just spoken to the local supplier. He has no explanation.
Strange. Hopefully a new supplier of Cocoa Butter will help solve the issue.
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Are you certain it is cocoa butter. Cocoa butter should be a solid at room temperature. Melting point 34-38 C.I know you are in SE Asia. Is your lab too hot?
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You need to consider both the apparent density and viscosity when using the Euperlan pearlescents.This might be of interest.
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This might be of interest.I played around briefly years ago gelling glycerin with carbopols and it definitely thickened the glycerin. I never proceeded with any stability trials so don’t know how stable they were.From memory I also tried just dispersing the Carbopol (Ultrez 10?) in most of the glycerin and then combining the remaining glycerin with TEA before adding. This also worked.Lubrizol has lots of information available about how to use the carbopols.
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Are you storing it in an opaque bottle or amber bottle?
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1. Where are you looking to sell your product? Cocamide DEA is classified as a possible carcinogen by the IARC and is on the Prop 65 list in California. It is not an ingredient you want your customer to investigate.
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You could also try something like Lamesoft PO65 (Cocoglucoside and Glyceryl Oleate) as it is a lipid layer enhancer.
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Another word of caution. Make sure you are wearing respiratory protection when using the SCI powder. It is very irritating to the respiratory system.
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Also “cup” is not a suitable measure. Use weights to ensure consistency between batches.
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Please do not attempt to make your own sunscreen/sunblock. These products are regulated as drugs in many countries for good reason.Here is a good summary of why it is not a good idea
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It contains water so it is not anhydrous.Sunscreen is classified as a drug in the US and it has different labelling requirements compared to cosmetics. The inactive ingredients are listed in alphabetical order and not by concentration. You will not be able to determine the amount used from the ingredients list.
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You can mention that essential oils can vary by batch as the growing conditions change (drought / high rain etc) and this can cause differences in the scent. Whereas using a fragrance the scent is the same every time.
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I’m not a consultant but just wanted to offer a suggestion for your CHG product.When I was looking for Antibacterial Hand Wash formulations with cationic actives I came across a Lubrizol formulation that used Carbopol SMART 3000 polymer. It is reported to suspend mica as well as thicken.I never proceeded as I couldn’t meet the minimum order requirements but it might be worth a look.
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You could try a fragrance fixative but it is probably easier to use a different fragrance. Avoid fragrances with lots of easily evaporating top notes.
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That is only a recommended usage rate and probably a guide for liquid products. Ask your supplier if they have a recommendation for solid bar products.The Cosmetics Ingredient Review concluded that sodium cocoyl isethionate is safe for use in rinse off products at up to 53%.Hope this helps.
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Can you substitute the SCI for Sodium Lauroyl Methyl Isethionate (SLMI)?SCI is not very water soluble and is preferred for solid products.SLMI is water soluble and is the preferred option for water based products.
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I’m not from the US but we exported some products there a few years ago that we had to adjust labelling for.This might be useful.That label would not be correct because it doesn’t specify if it is an oil or an extract etc.e.g. Jojoba should probably be listed as Jojoba Oil or Jojoba (Simmondsia Chinensis) Oil.Is Rosemary the essential oil or the oleoresin or an extract.
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At 3% Glycerin can also feel sticky. I would try reducing this first before you buy any new raw materials.