Bobzchemist
Forum Replies Created
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You can buy base and add pigments…what are you trying to do?
Have you searched for formulas? Looked at patents? -
The 1900 is much more viscous than the 100, and spills are 10x worse to clean. It’s about as thick as you can get without being a solid. Use caution in drum quantities, it tends to eat spatulas.
STP Oil Treatment is about 95% H1900,to give you an idea of the viscosity. It is just as compatible with polyamides as the H100 - they are the same polymer, just with different chain lengths. -
To the best of my knowledge, it is not possible to legally manufacture “certified organic” makeup/cosmetics, due to the current USDA NOP regulations.
Skincare is possible, but it’s a major pain to make - I would anticipate prices of 2x - 3x the price of “natural” cosmetics. -
I have a similar response as the one I gave kfox - I need some more info:1) Why do you want to take out the silicone elastomer, i.e., is it too expensive, or are there other reasons? Do you need a “natural” ingredient or can I suggest synthetics?2) Is the silicone elastomer you want to replace a powder or a pre-made gel?3) What function is the silicone elastomer performing in your product? Is it just for feel, or is it emulsifying or suspending as well?4) What kind of product is this going into?Last, but hardly least - Do you just want a few raw material suggestions, or do you want to find out how to do the research to get this info yourself?
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Helpful info, but still not sufficient - I still need some more info:
1) Why do you want to take out the nylon, i.e., is it too expensive, or are there other reasons? Do you need a “natural” ingredient or can I suggest synthetics? Can I suggest other nylon grades? other plastics?2) Is the nylon 12 you want to replace a spherical powder or a fiber?3) What function is the nylon 12 performing in your eyeshadow that is most important?4) Is your eyeshadow a pressed powder, a loose powder, or a liquid?Last, but hardly least - Do you just want a few raw material suggestions, or do you want to find out how to do the research to get this info yourself? -
In the US, the basic obligation is that every chemical that is in the product MUST be on the ingredient list. The FDA regulations that enforce this obligation carve out certain exemptions, and there are one or two “grey” areas.
To the best of my knowledge, there are no US cosmetic/personal care companies of any significant size that “stretch” their ingredient lists past what is legally permissible - the risks of getting caught are too high.Also, there is no benefit to doing so. Hardly anyone not a chemist believes this, but there is not a single personal care formula anywhere that cannot be analyzed and reverse engineered in a few days time - there is simply no such thing as a “secret formula” anymore. While the ingredient label is helpful for reverse engineering, it is by no means essential, so there is really no formulation reason to distort an ingredient list. -
@Perry has a class…
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A little of Indopol H1900 with the H100 is also nice for improving body, shine and adhesion. A little goes a long way, though. (Note: Do not EVER spill this on the floor. Just don’t. You’ll see why if you get a sample.)
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John,
Make sure that the machine shop knows why you are asking for the shaft to be ground/milled down. It would probably be helpful to bring them the dremel chuck and the blade with the shaft attached, as well. The technique they use will be different for a shaft that spins at 30,000 rpm as opposed to 30 rpm. The size reduced area of the shaft will ideally be perfectly centered so the shaft will be dynamically balanced - wobbling at those speeds would be a Bad Idea(tm).Bob -
Why do you want to replace castor oil? Anything reasonably close will be much more expensive…
However, LexFeel 700 or Liponate TDTM would be good starting points, also Polyisobutylene and Hydrogenated Polyisobutene and other synthetic hydrocarbons. Some of the versagels might work also. -
To do what, exactly?
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@nasrins, I cannot in good conscience recommend that someone with no experience put together a shampoo (or any personal care product) without following a specific formula and then use it on a human being, even if that human being is themselves. There is too much of a risk of harm.
The only things I can say to a non-professional beginner are:1) Find a reliable formula that other people have used successfully, and follow it to the letter.2) If you cannot find a formula that you can make without substitution, do NOT make the formula at all.Swiftcraftymonkey is a reliable source for formulas http://swiftcraftymonkey.blogspot.com/Even strictly following a formula has some risk - what if they make a weighing mistake? But I am not able to help that, I can only say that people need to take some responsibility for the harm that they might do to themselves or others. -
Thanks for fixing that, Ruben.
@Belassi (and anyone else), I’ve found that subscribing to the UL Prospector(Innovadex) e-newsletter to be very helpful. -
@bsingle, pH and viscosity are not correlated at all in any given product category. pH is only related to viscosity in the presence of specific thickeners.
Since you are clearly a beginner to cosmetic formulation, and not a chemist, please find a formula for shampoo from a reputable website, and follow it precisely - do not deviate from it in any way or change it at all - that is the best way to make sure that you will be safe. -
Unfortunately, I’m stuck using “natural” ingredients…
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You should be aware, though, that the listings in the buyer’s guide database are voluntary, and entirely submitted by the vendors. Therefore, it’s not a complete listing - no one goes out and searches for information to put into the database. All ingredients with an INCI name are listed (because the PCPC issues INCI names) but there are some ingredients listed as being without suppliers that do actually have suppliers, and some ingredient suppliers that are not listed at all.
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Plus the added benefit of giving current INCI names…
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Need more details.
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Anyone synthesizing chemicals for use on the human body should take most, if not all, of the courses there, preferably before they start experimenting on people.Bob
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I persist in being a big fan of Laponite
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Are you looking for packaging or packaging and filling?
For packaging, try Qosmedix http://www.qosmedix.com/Since your quantities are so low, you should also check with the DIY cosmetic sites, a number of which also distribute packaging.Personally, with runs that small, and a product list that varied, I think you’d be much, much better off looking at private label, rather than making, filling, labeling and testing the products yourself. The testing costs and labor costs alone will eat up all your profit and then some. (Not to mention the increased costs for inventory and equipment, etc.).Most private label formulations are pretty basic, so duplicating them when/if you want to bring manufacturing in-house isn’t usually a major project.