

ngarayeva001
Forum Replies Created
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ngarayeva001
MemberJanuary 12, 2021 at 12:23 am in reply to: Silicone for temporarily fill lines and wrinkles@Graillotion, this one is nice https://lotioncrafter.com/collections/silicones-alternatives/products/lotioncrafter-el40
lotioncfater should have set of samples for elastomers. You might want to consider trying to select the one you like. I have not tried the ones MakingCosmetics sells as I don’t like the price.
this one is my absolute favorite but yeah it’s in Australia https://trulux.com.au/caresil-cxg-1104/
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ngarayeva001
MemberJanuary 12, 2021 at 12:12 am in reply to: Thickening oil with silica dimethyl silylateEven if it separates sometimes it’s a stability issue that needs to be addressed. Polarity should be considered when mixing oils. They all are very different.
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ngarayeva001
MemberJanuary 11, 2021 at 10:00 pm in reply to: Silicone for temporarily fill lines and wrinklesAgree with the previous comment. You need silicone elastomers not just dimethicone. I would also have a look at ronaflair range https://www.merckgroup.com/en/brands/pm/ronaflair.html
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ngarayeva001
MemberJanuary 11, 2021 at 9:55 pm in reply to: Thickening oil with silica dimethyl silylatePolyxydroxystearic acid is for dispersing pigments. It has some thickening properties but not much. It will also make your oil blend cloudy. Btw, I had my eye on polyamide-3 for a while. Have you tried it? I wonder if it allows creating a transparent product? Polyamide-8 isn’t bad but it’s cloudy (and for non-polar oils)
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ngarayeva001
MemberJanuary 11, 2021 at 9:52 pm in reply to: Thickening oil with silica dimethyl silylateCannot guarantee as I have not tested that myself but usually C12-15 Alkyl Benzoate helps with mixing silicones and high polarity oils, so maybe adding some to your blend helps it to mix properly. Speaking of polyamide-3, I tried polyamide-8 and it thickens quite well on its own. I read polyamide-3 thickens better than 8, so try it without silica. Polyamide-3 should be suitable for medium to high polarity.
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ngarayeva001
MemberJanuary 11, 2021 at 9:41 pm in reply to: Thickening oil with silica dimethyl silylateIt doesn’t perform well with high polarity oils (the one I have is covasilic 15). I tried it in both octyldodecanol and CCT and it didn’t thicken them at all. I have not tried it in squalane, but it thickens hydrogenated polyisobutene. Since those two are both hydrocarbons and low polarity the thickening you see is probably due to squalane. And it is not surprising you see separation. Your oils have different polarities.
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@Andraous I don’t get your point. If bacteria can’t grow in your formula (assuming it’s self preserving) why would you need a preservative?
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I don’t think you will notice any effect even above 0.5%, to be honest.
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ngarayeva001
MemberJanuary 6, 2021 at 8:20 pm in reply to: Hair and body wash causing hair to fall out?I read that story about Tresemme class action and thought I need to buy some DMDM until it is completely banned..
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Glyceryl Stearate SE can be used as a primary emulsifier although I prefer Glyceryl Stearate and PEG-100 Stearate. It’s one of the most versatile and robust o/w emulsifiers. Try a combination of polawax and GMS SE. You would need to keep pH above 7 because SE is technically a soap and won’t work at acidic pH. Your formula looks good overall, keep it as is but replace BTMS with Glyceryl Stearate SE (probably not more than 3%) and remove polyquaternium-7.
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I think it’s all different questions and you need to post them separately. Re: hyaluronic acid serum, what is in that formula? HA forms clear gel, it’s something else that contributes to cloudiness
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You take this https://www.ulprospector.com/en/eu/PersonalCare/Detail/2667/216584/XIAMETER-PMX-1501-Fluid and dilute it with more cyclopentasiloxane. Done. If you want to get super fancy, add fragrance (mixed in alkyl benzoate) and 3-4% of phenyl trimethicone.
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ngarayeva001
MemberJanuary 5, 2021 at 9:20 pm in reply to: Make the chemist’s life wonderful again!Such a good question. I would also add a question on how much they think they are going to sell. Some would want to start with something like 500 jars of a moisturizer which translates into 25kg. I am not sure it’s possible to find a manufacturer who would run the equipment for 25kg. And if the client wants to make the product in house it’s a whole different story.
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I don’t see this approach in commercial products very often. You would make your life easier if you ditch cationics. But if it’s important for you to keep it this way, you need to increase cetyl alcohol for ‘butter’ consistency. Speaking based on my experience in hair conditioners.
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And how are you going to emulsify dimethicone and oil?
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Carbomer is anionic. You can use cationic guar or even some grades of polyquaternium 10 but it will not be a traditional conditioner
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It won’t be a traditional conditioner. Most of cationic emulsifiers must be melted. You can use cetrimonium chloride but you still need something like cetearyl alcohol to thicken it. The only way around it that comes to my mind is to get creative, make it liquid and say it’s a new format. Example: https://www.lorealparisusa.com/products/hair-care/products/hair-treatments/elvive-8-second-wonder-water-lamellar-hair-treatment.aspx?shade=elvive-8-second-wonder-water-lamellar-hair-treatment
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If formaldehyde releasers isn’t a problem then use germall plus powder. I find it works well in formulations where transparency is important. I can’t comment on whether it will preserve your particular formula and you need to do all necessary tests (it’s a good preservative in general) but it shouldn’t contribute to cloudiness
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You need chelating agent anyway as part of your preservative system speaking of which, I understand you rely on diols here. I am no expert by any means, but it doesn’t look sufficient to me especially with aloe added (aloe introduces additional preservation challenge). Other than that, your toner looks ok to me. I make a serum very similar to this (urea, niacinamide, sodium lactate, lactic acid, other humectants). I keep ph at 6 and thicken it with high molecular weight hyaluronic acid.
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ngarayeva001
MemberDecember 30, 2020 at 7:56 am in reply to: Which bugs will colloidal oatmeal feed the most.To illustrate how the approach changes based on type of product:
https://incidecoder.com/products/aveeno-daily-moisturising-after-shower-misthttps://incidecoder.com/products/aveeno-moisturising-lotion
https://incidecoder.com/products/aveeno-sensitive-skin-spf-50-mineral-sunscreen
https://incidecoder.com/products/aveeno-calming-cleanser hah! Found one with good old parabens
I absolutely love INCIDecoder for researching what ‘big guys’ do. I know some members of this forum dislike it for labeling ingredients as good or bad, (which I agree should be ignored). In their defense, it’s not as bad as, say EWG and rather convenient for searching. They even have an advanced search and allow looking up combinations of ingredients. Search can also be run by brands and ingredients.
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ngarayeva001
MemberDecember 30, 2020 at 7:42 am in reply to: Which bugs will colloidal oatmeal feed the most.Back to Dr. Geis’s advice, have a look at Aveeno. It’s a well known brand under Johnson&Johnson. It has a variety of products and their entire marketing story is based on oatmeal. I had a quick flick through and as always there’s no one size fits all answer. Several highlights: The packaging is in most cases doesn’t allow consumer to introduce additional challenge, they don’t use parabens (although I recall seeing it in some of their products several years ago), they use complex preservative systems with multiple elements (from cationics to organic acids). Depending on your budget this project might not be commercially feasible. You would end up sending your product to test multiple times and failing it multiple times.
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I have not tested it myself but it looks like Sepinov EMT 10 should be able to do this if you are looking for a gel texture not a stick https://pixibeauty.co.uk/products/inshower-steam-facial?variant=13256005746755
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@Belassi, after I read the story about your dogs, I only wash my cat with a mixture of SLES/CAPB and water (10% ASM) that I mix and use right away (so no preservative). Provided it’s just three ingredient and aesthetics of shampoo is the last thing cats care about, the process does take long. I have been using OGX shampoo for many years and washed my cat with it several times. Fortunately without any problems, but I won’t take a chance anymore. Thank you for raising this important issue. Better safe than sorry.
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@Belassi, what are you using for your dogs now? I wonder if parabens are safe for animals? Something like germaben II for example?