Bobzchemist
Forum Replies Created
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@Perry, Do they need help selling or do they need help determining what use this material would be for cosmetic formulating?
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Please start a new discussion
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Tell us how your batch comes out?
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There is someone I know who does this professionally. I would highly recommend her:
Marnie RousselI will also point out that this sort of request for information/pricing is typically ignored on this forum, mostly because it’s peripheral to cosmetic chemistry, but also because it’s phrased in a way that comes off a bit rude. It is only because I know and can vouch for Marnie personally that I bothered to take the time to respond to this. -
In the US, anything that affects the “structure or function” of the human body is classified as a drug by the FDA. That most definitely INCLUDES the skin.
In other words, penetrating the skin and then actually doing something automatically makes your product a pharmaceutical, a doctors-prescription-required drug. Selling or attempting to sell your product by saying that it does anything but temporarily affect the appearance of the skin without first filing a NDA is illegal. No one that I know of has gone to jail for this, but companies have been forcibly shut down over it.Deliberately trying to penetrate the skin is a bad idea, unless you have the resources to conduct extensive safety testing. -
You can buy cosmetic grade clay that has no silica dust at all.
The alternatives are much more expensive. -
or PEG 50 Hydrogenated Castor Oil (Lipocol® HCO-50)
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Try using a different solubilizer, like PEG 40 Hydrogenated Castor Oil
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Probably not, if you are looking at emulsion stability
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I agree with contacting your supplier. Something odd is going on with one or more of your film-formers. Adding solvent may or may not be the correct solution, but you really need to check with the chemist who formulated the base. It may be that you need more plasticizer, for example.
If you have the capacity to mix something into the entire drum, your supplier may be able to send you a correcting adjustment mini-batch. This could be a way for them to preserve their formulation secrecy and still fix your batch. -
You may find that glycerin+surfactant has a foam curve, like salt+surfactant has a thickening curve. Let us know what you find out.
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Soap has NO disinfectant strength at all in a dilute form. You will need to add an actual disinfectant, or use the soap at full strength. Even then, actual disinfection will be minimal.
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Dominique, if you are in the US, the FDA requires all cosmetic companies to use synthetic colors, with very few exceptions.
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Yes, there are a great many. No one chemical can do everything you are requesting, though. Do some research, and I’d be happy to answer any specific questions you have.
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Belassi is right, I reacted without looking at percentages. I’ve found that more than 10% - 20% of glycerin reduces foam, even in sulphate-free formulas. I don’t think you’ll see a difference between 3%, 5%, and zero glycerin - BUT!
Here’s a point I’ve been trying to make to a lot of people: YOU SHOULDN’T TAKE OUR WORD FOR IT!Try it yourself and see. You will not learn without experimenting. -
“Best” how, exactly?
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Try it without the glycerin. It inhibits foam.
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Or much, much more pigment.
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Titanium Dioxide
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Where are you located?
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It doesn’t look like that’s anything that Beaumont can help you with, sorry.
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I need more details,please.
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Is there some reason that you can’t design and run the experiments yourself?