DAS
Forum Replies Created
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They won’t smell bad unless they are severely contaminated, but preservatives will degrade over time. So yes, they will stop preserving. The degradation will deppend on may factors, like storage, manipulation, RT, etc., so it’s hard to say that it will be safe if you double it, you can only rely on a lab test. And unless you have large quantities it’s cheaper just to buy more and avoid any trouble.
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No, it’s a latex. Works great in water and it’s cheaper and easier to use.
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If you use the powder it’s impossible. It’s not water soluble. But you are using CMC. If you make a stable formula it might work.
Considering you are using NP I don’t see the problem over a little bit of styrene butadiene. There are non-ionic of white appearance, but I can’t think of any for the use you need.
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Even if the product doesn’t need a preservative, the use of it suggests it will contaminate right away. Lips are full of filth and dead tissue.
I had an issue with sillicone recently, the bottom of the can had tasty mushrooms. When I asked what happend one of the employees told me that he washed the can with water to clean any remains of plastic or dust, and dryed it with hot air before he transfered from it’s original drum to this smaller one. No other product, just dimethicone. Yet mold appeared at the bottom.
So my suggestion would be to add a preservative no matter what. Better safe than sorry.
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If it gets white is because you are doing something wrong. The NP and the CMC are both transparent in final product. It gets white because you are having a o/w fist fight or because the CMC is out of pH. Or maybe both.
As I suggested match the NP or double it (1,5-3%). And for the CMC the pH should be 7-9. You should get a nice transparent thick product. If you want to make it white you should add an opacifier like styrene/butadiene, or maybe it’s gelly enough to add a microdispersion of titanium dioxide.
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Any thoughts about using stuff like l-arginine or menthol?. Maybe for marketing purposes, since intimate products made people comfortable using them and the effects are well known you could take advantage.
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Fragance plus allergens I think. But I’m not sure if it’s considered a cosmetic product. After all it’s salt.
You can read more about it here:
https://www.fda.gov/cosmetics/productsingredients/ingredients/ucm388821.htm -
The max I’ve seen on a leave on formula is 600.000 IU, more than that might be a prescription cream for specific purposes.
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It will give more stability, even if you product seems stable I don’t think it will stay that way through time.
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I see. In that case the more surfactant you have the better, a floor cleaner with little surfactant won’t be cleaning much. So match it or double it.
And the oils are not disinfectant at all, at least in that percentage. And legally you would have to have in your formula an approved material in a minimum percentage to be able to call it disinfectant. Benzalkonium chloride is the most commonly used. -
Your product turns white because you are not emulsifying properly and you are adding a lot of water to an oil. You can’t make an emulsion with that 10%, that’s about 0,5%, it should be 10% of the total formula.
The oils don’t have HLB because well… are oils, they don’t mix with water. The HLB system is for surfactants.
And the CMC is pH sensitive, you would have to adjust it.
And it is a lot of blending that you don’t need, you will get a best result and less foam and air with a spoon.What I don’t understand is what kind of product are you trying to make, even if you stabilize it you will end up with a smelly gel.
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For scales I suggest something like this: https://www.ebay.com/itm/Pocket-Digital-Scale-200g-x-0-01g-Jewelry-Gold-Silver-Grain-Herb-Balance-Weight-/151850414708?epid=1261120915&hash=item235afd7274:g:4wwAAOSwA4dWIFFk
Really cheap and precise if you are doing small batches. There are bigger ones.
For the magnetic stirrer I’d suggest to buy used equipment, and for the pH meter a new one. About $100-200
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Congratulations to the lab, ethics above all. Knowing this could have serious negative reactions they could have looked the other way, fire him and avoid public exposure.
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I’ve never used it, the most common is Tween 20, sometimes I use glycerin. But still the fixation of the fragrance depends on the formulation itself. There isn’t an all purpose fixation agent, all you can do is prevent/enhance evaporation. The best you can do is tell your manufacturer what you need and a perfumist will know what to do.
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So that’s the catch, keeping a batch at 75° is expensive and I’d need to modify the reactor. I was told that 50° or 55° would be enough. That’s the problem with sales guys, they will say what you wanna hear.
@ozgirl I will look into it, I was thinking I could heat up MEA with water and store the paste . Are you buying it already as a paste or you are doing it yourself?.
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If you don’t want to change the formula your only option is to change the formula of the fragance. A blend of antioxidants and a different vehicle did the trick for me, but still you need to test it and see how it behaves in time. Even when it seemed stable I saw slight color changes after 6 months, citrics are tricky even when they are compensated with sinthetics.
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So it’s easy to incorporate once dissolved?. Won’t solidify if I incorporate it SLES at RT for instance?.
If it is such a good replacement why it hasn’t been seen on shampoos or soaps?. I tend to distrust if I don’t see it on a shelf, if the leading companies aren’t using it there must be a reason.
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Yes, but my guess is the micelle won’t change it’s shape that much. If it did we would notice a more radical change under the addition of different substances (and it’s a big guess).
It would be cool to see it under a microscope, I’ve only seen charts, and of the most common stuff. Have you tried asking manufacturers?. Maybe companies like Hallstar of Stepan could provide some info. Sometimes when you mail the local R&D they answer.
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First of all, you need to understand skin is an organ. There’s nothing simple about it.
Secondly, oils are very complex too. They are formed by many compounds like vitamins or aminoacids that will interact with your skin. Every oil has a different composition and it will interact with the skin on a molecular level.
Having that said, and to answer your question, the oil will provide the skin what it needs to function. In your case Grapeseed Oil is rich in vitamin E among many other things, which is an antioxidant, and the skin will “use” it.
And since every skin and every oil is unique, the interactions are infinite. And that’s pretty much why there’s this thing called “cosmetic chemistry” and a billion dollar industry that studies the components and the interactions.
Bottom line, don’t play around with your skin and don’t put on anything on it if it hasn’t been approved by a doctor or a cosmetic chemist.
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Ah, a supplier offered me the EcoSense line, I shouldn’t even try then?.
What about thiazolinones?. Because all big players are still using them, even after being chosen as allergen of the year and many bad reviews.
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Oh I didn’t mean just this article, and obviously they can be their own competition. So if they decide to make a move like push on the market sulphate free products that would affect us all. Just like they are doing with parabens, now people think it’s poison.
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“38 contained 1,4-dioxane, an ether commonly used as a solvent in manufacturing”. And that’s the result of a quick google search when a writer publishes something he doesn’t understand.
Seems more like a marketing war than anything else. I guess “natural” and “organic” manufacturers are getting more agressive.
The lab results are not important, it’s how are published. The big question is how this will affect the industry, are the big companies like P&G going to change the formulas and avoid using ethoxilated surfactants, or will they deffend their products?. We will have to wait and see how this will affect the production and cost of raw materials.
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My conclusion after trial and error is that when you add stuff to a simple formula if you change the fluidity (I mean to make it look as a detergent instead a gel) salt just can’t rearrange the micelle. It will thicken it but you need much bigger quantities. The easy way is to increase the % of thickening surfactants and cut out salt.
It will be interesting to see how and why the micelle is rearranged under different materials, I’ve never found a paper or an investigation about this. Maybe the R&D of surfactants manufacturers will have the info, but I doubt they are allowed to share.
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Any oxidizer will change your formula and ruin or change significantly your product. Maybe an UV lamp?. There are other methods, but I doubt you want to add bacteria in your soap
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I agree, what I noticed is that the concept is first introduced by the use of botanic iconography, it is quite common to see leafs and fruits as a sign of “natural origin”, and a missleading phrase like “comes from nature”. And of course a transparent product on a transparent bottle with a transparent label to give the impression of natural and low level of process.
But I saw that this applies mostly to rinse off products. On leave ons like anti age creams is quite the opposite. There is a pharma/biomed approach, and the “natural” hook is that the ingredients are the same found in your body “farmed” by scientists in a lab, and what you get is a refill of enzimes and vitamins.
Amazingly both work like a charm and coexist with no problem. I suppose it is because they are targeting a different segment.
Anyway, I think this will last untill something “natural” harms the general population and the good old tested synthetics are demanded again by fear. It reminds me of the anti- herbalife campaign back in the 90’s.