David
Forum Replies Created
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@Microformulation - I think the opposite - that’s exactly why consultants are needed. If everybody selling/making cosmetics were educated research chemists - then consultants would be obsolete
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If I remember right I saw something once with nylon-xx, (don’t know the number), however PEG-90M is the better way to go.
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@Belassi : excellent problem solving
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If your are from UK I would recommend you ask your safety assessor first. I haven’t calculated on it but 8% TTO in a deodorant could be declared as unsafe - then you can’t sell it in EU.
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Is is definitely harder to make a good job on the other side of the world. On top of regulations and raw material supplier differences, on-site scale-up assistance is practically impossible.
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They are quite straightforward, esters, silicones and polymers to stabilize the emulsion.
This one combines 4 stabilizing polymers, maybe balancing the vegetable gums and synthetic polymers.Ultra Facial Oil-Free Gel-Cream
AQUA / WATER
GLYCERIN
ALCOHOL DENAT.
DIMETHICONE
ISONONYL ISONONANOATE
CARBOMER
IMPERATA CYLINDRICA ROOT EXTRACT
DIMETHICONOL
CAPRYLYL GLYCOL
CHLORPHENESIN
SODIUM HYDROXIDE
XANTHAN GUM
PSEUDOALTEROMONAS FERMENT EXTRACT
TETRASODIUM EDTA
TOCOPHERYL ACETATE
MENTHOXYPROPANEDIOL
PHENOXYETHANOL
BIOSACCHARIDE GUM-1
ACRYLATES/C10-30 ALKYL ACRYLATE CROSSPOLYMER -
Although coming form the “chemist” side I have to admit I underestimated the complexity of cosmetic products as well. Hmm. Shampoo? A surfactant and water. Rest is marketing - I thought. I still remember 17 years ago I took 30% SLES @ home and washed my hair. Of course it worked! - but later it started itching, was unpleasant to apply and it was not nice after all…..so maybe the other ingredients has something to do with it..so I added one - and then I needed another one to keep the first one stable which leaded to the third ingredient which needed to be preserved….and so on.!
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@ashish -I just gave you one.
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Safe as used up to 99% , CIR Report
Journal Of The
American College Of ToxicologyJACT 3(3):43-99,
1984 confirmed
06/03 IJT
24(S1):67-74, 2005 -
@Bill_Toge ;
Really? point 1 and 2 should be obvious for any company including pizza delivery…
point 3 I don’t get, maybe due to the language, what do you mean with manufacturers subcontract your lab work for free?
when is lab work for free? -
Can only speak for myself, but an important part for was that before I even started to consult I made a survey of potential customers (brands or producers who I already formulated products for as an “employed” chemist). I made sure I knew the person in charge and that they would remember me. From there it was - and still is - hard work!
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Interesting question, but I wouldn’t put to much weight on refractive indexes in this case. There may be a correlation since refractive index is correlated to polarity which in turn is correlated to solubility which is correlated to transparency but hmm it is kind of complicated. I am a bit on thin ice here maybe somebody can fill in.
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If you want ecocert why is 4,5% polysorbate in there and EDTA?
and is sod. ol. sulfonate ecocert? not sure
Cut the oils get an ecocert chelate and an ecocert surfactant mixture.
Build from there. If you like organic oils - make a conditioner and you have a nice combo. -
In case you like ABBA
http://www.abbathemuseum.com/ -
Hi @Perry
I am from Stockholm but will not there unfortunately! 🙂 -
This should help you.
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Demipermanent is usually referred to as oxidative color without ammonia and with a low % peroxide. Since there are 2-components this is only possible with some kind of dual aerosol system (rare on the market). If you mean semipermanent/ temporary hair dye mousse it is quite straight forward.
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A mousse works fine though.
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What I can remember from working with aerosols we used only Nitrogen @ a few bars when producing water spray.
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That’s interesting!
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For safety and stability reasons you should never add ingredients that may breakdown into other substances in cosmetic products. Whether this will happen or not in your case is hard to say without performing a series of experiments. I would recommend looking for a substitute.
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Regulation: What @Bill_Toge said. I am however very sceptical to that 0,2% Calcium Peroxide has any effect at all considering the “real” toothwhitening products contain up to 22% Carbamide peroxide and should be left-on a couple of hours.
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I remember sourcing that material some years ago. It turned out to be way too expensive to make any sense in comparison to “normal” aerosols. My source (cornelius) seems to have discontinued the material as well. I don’t know the purpose of your project is but if you are after experimenting with the foaming effect maybe try finding the ethers separate elsewhere. (not as cosmetic ingredients)