MarkBroussard
Forum Replies Created
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You could also consider using mixed Tocopherol and Tocotrienols
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Here is a list of chemists who might be able to help you:
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Buy Perry’s book and take his online formulating class is your best bet.
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I’m certain I have come across some technical papers regarding chelating efficacy at various pH levels. I do not recall reading anything indicating substantially reduced performance at lower pH levels, but it’s a good line of inquiry for further research.
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Curious, have you measured the pH of GL38 in water?
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No problem Silkster … It’s just struck me as odd that the toxicity report you referenced had a total sample size of only 1 human being who reacted to a “home brew” containing Eucalyptus Oil… quite the exception rather than the rule
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FYI: Eucalyptus is FDA GRAS for use in food products and inhalers
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There’s nothing baffling about it at all … it is very different to use 0.5% Eucalyptus Oil in a topical cosmetic than it is to ingest Eucalyptus Oil. There are many ingredients that you can put on your skin that you should not eat.
Eucalyptus Oil has been used for hundreds, if not thousand of years. You’re good at anywhere for 2% on down, depending on your intended use and cosmetic format.
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Yes, Perry … website is live!
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There’s also Anti Monkey Butt Powder with Calomine
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Trisodium Ethylenediamine Disuccinate works just fine.
Gluconolactone is a good adjunct to a preservative and has good skin properties.
Phytic Acid … really don’t use it.
If those are your three options, I would go with the TED.
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Hard to answer your question without some idea of what is in the water-free paste? Is it oil based?
You could try Octyldodecanol or 1,3-Propanediol, but it all depends on what you’re trying to incorporate it into.
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Yes, I buy directly from Schuelke. Acutally, depending on the product, you can get 10Kg pails. I do not know if there are any Schuelke “repackers” to obtain even smaller amounts. I am not aware of any.
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Euxyl PE910 will cover you in most situations except when you have Polysorbates.
Euxyl K900 … Benzyl Alcohol/Ethylhexylglycerin is another good choice.
Benzyl Alcohol/Dehydroacetic Acid
Either of those three with a touch of Citric Acid and Dissolvine GL-47 and you’re covered in most instances.
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Nothing that specific, just information I picked up from various sources.
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Both Citric Acid and Dissolvine work individually, but Dissolvine is a more effective chleator than either Citric Acid or EDTA.
The reason I recommended using both is that there is a synergistic effect between Citric Acid and Dissolvine that besides providing Chelation, really boosts Preservative efficacy.
So, you have a multifunctional effect … Citric Acid acidifies (pH) adjuster, chelates and provides some preservation properties, Dissolvine chelates and the combination can double the efficacy of certain preservatives like Gluconolactone/Benzoic Acid.
I use the combination in virtually every one of my formulations and have never had a problem regardless of the format, except for formulations containing Sodium Ascorbyl Phosphate … standard ingredients for me.
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Yes, you can use Citric Acid. Probably better is a combination of Citric Acid and Tetrasodium Glutamate Diacetate (Dissolvine GL-47).
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If you have any Polysorbates in your formulation, it will inactivate the Phenoxyethanol, but either of your two choices should work just fine.
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Ethylhexylglycerin is a preservative booster … it’s mechanism of action is to weaken the micorbial cell wall making it easier for the actual preservative to penetrate the cell. So, you might go with a blend of Benzyl Alcohol/Ethylhexylglycerin or Phenoxyethano/Ethylhexylglycerin.
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And I’ll bet it’s a patent attorney that told you that!
I really would not worry about it that much unless you have a proprietary, patentable ingredient that you’re trying to protect and you manufacture that proprietary ingredient. If you are simply buying all of your ingredients from suppliers to make your product, it is a very, very low likelihood event that would you ever get sued for patent infringement, unless you are obviously violating an existing patent at the time you go to market.
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You might try acidifying your concoction to pH below 6, if that does not create conflicts with other ingredients, to give you a wider selection of Preservative options.
Adding ethylhexylglycerin at 1% (its max solubility in water) generally will boost the efficacy of some Preservatives up to pH 9 or so.
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Will do, David. The worst thing that can happen is that I fail. I have an inkling there’s an untapped market potential there and there’s only one way to find out.
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Suttocide A … I would stay away from it … serious eye irritation from the fumes and it has a nasty smell.
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Expertise in Clean Beauty/Natural/Organic formulations
Skin Care: Creams, Gels, Lotions, Serums, Cleansers, Active Face Oils
Hair Care: Shampoos, Conditioners
Other: Sunless Tan Products, Sunscreens, Deodorants
Specialty: CBD, Baby Care Products, Acne
Clean Beauty: Natural product bases infused with select highly functional synthetic active ingredients: Tripeptides, Retinol & Retinol derivatives and advanced ingredient delivery systemsMakeup: I DON’T WORK ON COLOR COSMETIC PRODUCTS
Product development services include formulation development and stability testing, all inclusive.
Contact: mark.broussard@desertinbloomcosmeticslab.com
Web: desertinbloomcosmeticslab.comBlog: https://desertinbloomcosmeticslab.com/cosmetic-chemist-skincare-blog/
Standards: Sephora Clean/Credo Clean/ECOCert/Natural Products Assn/Whole Foods/National Organic Program/NSF
https://chemistscorner.com/mark-broussard-formulating-to-a-natural-standard-podcast-41/
Organic Program guidelines focused skincare & haircare products.
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Actually, there is a researcher in Canada that is pursuing a tattoo removal cream. His results look promising, but it requires several months of application. Not commercial yet, but perhaps in the near future.