Doreen
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- Doreen
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(Quote) Well said, Perry! Couldn't agree more! @Gunther What does hard work and poverty have to do with an article about hair dye? :confused:
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(Quote) Did you have an allergy test done in the hospital, or did you test some fragrances yourself?
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@ngarayeva001 What expiration date have you set for your opened bottles of water? It just feels like a waste to throw around 4 liters away from every bottle, but just like you, I'm also afraid of contamination. I don't boil it though.
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@ngarayeva001 You really don't need sterile water for cosmetics. You're not going to inject it I hope? ;) (Plus boiling won't sterilize it) I am really curious what else was in that facewash? I've never had any visible growth so far in any of my f…
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@Bill_Toge Ok, thanks! I use rather low levels of fatty alcohols/acids in moisturizers, maybe that's why I don't see it (the cream reaching a higher viscosity after a few days) happen.
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These are a few types of vegetable oils that I don't see very often in products: * Cacay Seed Oil (INCI: Caryodendron Orinocense Seed Oil) * Prickly Pear Seed Oil (INCI: Opuntia Ficus-Indica Seed Oil) => this oil is very expensive * Kukui Nut Oil…
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(Quote) I've heard combining BHT and tocopherol in one formula at a certain level can cause discoloration, but I have no idea if that's true, since I never combine those.
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(Quote) I've seen this brought up many times, that you gain final viscosity only after a day or 2 if you use fatty acids/alcohols, but I've never experienced it myself. Viscosity right after cooling down has always been the same as a few da…
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One more tip for understanding emulsions: this is a link to a former discussion here on CC, it's a gem! (written by @Bill_Toge ) https://www.chemistscorner.com/cosmeticsciencetalk/discussion/3005/emulsions-setting-the-record-straight
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In addition on my reply above: I also totally agree with @Belassi on the resveratrol.I would recommend to experiment with ferulic acid and resveratrol later on, when you are more experienced making stable emulsions, they're difficult to solubilize a…
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@marinaartm Practically every herbal extract contains more or less electrolytes. Are you aware that Emulsan (methyl glucose sesquistearate) is a W/O emulsifier instead of O/W? W/O emulsions need a whole different approach than O/W's, for stability …
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A volatile silicone, like cyclo D5 (cyclopentasiloxane) also has a less greasy feel and makes spreading easy.
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@Will I think @ngarayeva001 meant 20% L-ascorbic acid, not 20% lactic acid. ;)
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@ngarayeva001 Correct! That as well. :)
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(Quote) That's also the biggest reason why I use medium/high molecular weight hyaluronic acid in serums. It's funny that in private I use it for its viscosity and work-related I only deal with an enzyme that breaks it down (a hyaluronidase…
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(Quote) I don't know much about whitening ingredients, so I also haven't read about scientific studies, but I wonder are there even studies that confirm that vitamin C is a whitening ingredient at all? They also say that about licorice, but…
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(Quote) Do those really make a significant difference? Shampoos, to me, are only for cleaning and I don't mind if they contain sulfates like SLES as long as it smells good, that's about my only demand. Expensive ingredients like panthenol …
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Agree with @Pharma. You can start with using as much as the amount of dimethicon c.q. cyclomethicone that you would otherwise have used.
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@Dtdang , @chemicalmatt , @smok You are all welcome! If I find something interesting, first thing I do is share it here. It's always nice if it can help more people than just myself. Matt, Sounds great! I think it's a real talent if you can make a…
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@Max You're welcome!
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So the whole whitening hype has even made a jump to pet owners who are insecure about the colour of their pet's fur? Personally I would already be more than happy to have a happy and healthy pet, but ok. You already mention that dogs have a 'more fr…
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Regarding synonyms. Cetyl palmitate used to be derived from the waxy substance in the head of sperm whales. A few suppliers here use names like 'synthetic cetaceum', or 'cetyl esters', like @chemicalmatt mentioned. "Synthetic spermaceti/cetaceu…
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@Sibech Microbial growth on the surface isn't uncommon, same for other anhydrous products that come in contact with water. Better be safe than sorry. I agree with @marytsiang . I myself use 0.1% propyl paraben in lipbalms. And lipsticks, but I har…
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@ngarayeva001 I think she did, they even travel the world with it Kidding aside, you're right, I hope so too. Point with people like her is they can't be reasoned with. They stubbornly believe fake internet 'doctors' and all kinds of bullsh*t site…
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(Quote) Too true. Not to sound cliché, but she's also anti-vaxx. Glad I got rid of my Facebook account. With that one click there go all the 'out-of-courtesy-accepted-friendship requests-from-far away-relatives'. (in this case far away gene…
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@MarkBroussard Yup!
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(Quote) I think the figure on that price tag is only caused by that stupid brandname. What is it with you and these insanely expensive brands? :lol: Good that you mention the danger of 'colloidal silver' ingestion, @Perry. I know someone who drinks…
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You're welcome!
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Aliacura and Alexmo Cosmetics from Germany sell a lot of Evonik/Dr. Straetmans products. Aliacura ships nearly worldwide, Alexmo only to European countries. Good luck, I hope you'll find what you're looking for.
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Erratum (my previous reply ^ ) SymSitive is not a patented ingredient by the brand Eucerin, it's the main ingredient in their Rosacea, Ultra Sensitive line (along with licorice). It's even sold by repackers like MakingCosmetics (only in bulk though,…
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