MarkBroussard
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- MarkBroussard
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Comments
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The pH of dog's skin is 7.5 ... it is also quite thin relative humans and much more sensitive ... I would nix the essential oils, they might smell good, but could easily irritate you pet's skin. Formulating for dog's skin is akin to formulating for…
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I suspect it is much easier for the FDA to issue violation letters and enforce a cease and desist if the product is mislabeled ... that's within their regulatory mandate without having to go to Court. And, they have the authority to force a company…
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The problem is the assumption that these companies are making much money through their certification programs. There are only a handful of finished products that are certified by any of these organizations ... the money is coming primarily from ing…
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Quite the contrary ... we have a USDA Organics Program, there are several natural standards organizations that have developed standards that are quite similar to one another, including the Natural Products Association. It does not make sense to me …
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Maybe the OP meant "Tin-Free" ... unless the OP is looking for someone to formulate 10 formulas free of charge so the OP can then make money selling the formulas to their clients without paying the chemist who developed them? If it's the latter, no…
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Damned autocorrect!
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You'll have to get the oil temperature up to 110C or so for it all to dissolve ... it has a quite high melting point. Generally best if you first heat up the oil phase and then drizzle in the Ascorbyl Phosphate in small aliquots while stirring and …
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@EVchem: You could possibly make that work using Ultrez-30 which is a low pH activated carbomer that will thicken at pH 4.0.
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From PubChem regarding Gluconolactone: 3.2.10 pH Freshly prepared aqueous solution has pH of 3.6, changing to 2.5 within 2 hours
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There are several chemists on this list who are experienced natural products formulators: https://chemistscorner.com/cosmeticsciencetalk/discussion/137/need-formulating-services-here-are-some-contacts#latest
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Phytic Acid
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@Perry: Correct, something is not right with this study if they are claiming to have used 5% Hyaluronic Acid ... perhaps what they actually mean is 5% of a 1% Hyaluronic Acid solution.
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If I recall correctly, the maxiumum solubility of Urea in water is about 17% Urea. You can easily check the solubility with a simple Google search.
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@Gunther: Are you trying to use Na Metabisulfite because your formula contains dyes and you're trying to stabilize the color?
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From a cost standpoint, absolutely. What I would like to see is if they compared a SLMW or micro HA that penetrates the epidermis which would be a head-to-head comparision. If they used a higher mw HA, then the results are not particularly surpris…
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Well, here's the issue that makes not specifically clear: In the study, you don't know how much Glycerin was used and you don't know how much Hyaluronic Acid was used ... was it a 1:1 comparison? ... we don't know. If you can get the entire stud…
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Perry, I seriously doubt that anyone had conducted a study as such that has been published. But, let's start with the premise that Glycerin is as equally effective as Hylauronic Acid when applied topically ... where's the evidence to support that p…
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ngarayeva001 said: ... but I think the point Perry is trying to make is that you can achieve the same result with cheaper materials. The flaw in the logic in that argument is the assumption that glycerin delivers the same results as hya…
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The higher molecular weight grades of HA will form a film on the surface and reduce TEWL. Combined with a micro weight HA that penetrates the epidermis and you'll get humectancy + TEWL reduction ... I don't think that is something that glycerin is …
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Yes, you are missing something. 5,000 Dalton is not the smallest HA molecule and, yes, certain grades of HA can penetrate the epidermis.
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There are several grades of HA that vary in molecular weight and ability to penetrate the epidermis and dermis ... it is not a singular molecule as is glycerin. So, the first distinction is which grade of HA are you comparing glycerin to because yo…
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What you are asking for is not a "stock" dispersion. You might contract Grand Industries and see if they would custom-blend batches for you.
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Abdullah: What is the pH of you final formula? That will determine to a great extent what preservatives are appropriate. FYI: Caprylhydroxamic Acid ... I don't use it as it has proven to be too weak for broad spectrum.
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It would be easier to just buy this in bulk at a discount and put it into your own branded containers and call it LoLieall
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Yes, I am working on a project now that incorporates Sola Tara ... similar performance.
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About the only natural ingredient that is going to work with non-ionics is xanthan gum. For a better skin sensorial, you might try Solagum: Acacia Gum and Xanthan Gum (Seppic).
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@raiyana: Your best approach is to avoid Glycerin (and Panthenol) completely is water-based toner-type products. It will be sticky even at 1% Glycerin if your product format is a Toner.
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@cheekychooky: No worries ... as Perry mentioned, when you read something posted by someone you have never communicated with before, it oftentimes can be interpreted with different intonation in the reader's mind than intended in the writer's mind …
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I just love it when people post formulas using product trade names as opposed to INCI names for some ingredients .... just who is it that you think has time to look up product trade names to answer your question?
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Gordana said: Thank you very much! aqua, glycerin, stearic acid, petrolatum, olea europaea oil, cetyl palmitate, cetyl alcohol, alcohol, sumatra-benzoe, parfum, methylparaben. what is an emulfisier in this product? I would suspect …
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