EVchem
Forum Replies Created
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Extract is a catch-all term, but I have seen it used more for water soluble extracts than oil. When you buy an extract you’ll be able to tell if it is in water or an oil. In a finished product you might not be able to tell. The extracts are usually very dilute
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You still have to list it on the label. That paragraph is saying you can still make a cosmetic with dimethicone. If you start making claims about the product protecting the skin, you are making a drug and should follow procedure for drug manufacture (labeling active ingredients, being a registered FDA manufacturer, filing paperwork).
How to choose between 6 vs 350 dimethicone? What are the cost differences, amount needed to eliminate the soaping, feel, consider if one is harder to source or use than another (that’s how a business thinks vs a hobbyist).
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@letsalcido
The lower your pH, the more cationic your CAPB will act, that could be causing the problem with the xanthan gum.If you want to read more on HPC skim through the file I attached
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well you tried to avoid anionics surfactants but gums can have ionic character too! xanthan gum is anionic. What pH is your product at? CAPB is amphoteric which means the pH influences the ionic character.
Try looking for products that have the surfactants you’ve chosen (and only the surfactants you chose) and I think you’ll notice two things
1. you’ll be able to see what ingredients are being used to thicken systems like yours
2. you’ll notice most products don’t have just your surfactants because it wasn’t popular either in terms of feel or performance.Other piece of advice it to post your formula (percentages and all). People can spot missteps easier this way
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It’ll depend on your formula but likely 0.5-1% will be enough
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I seriously doubt any of those products have true stability for 3 years.
Also I believe C Firma is still being investigated for violating the skinceuticals patent for C E Ferulic . https://www.vox.com/the-goods/2018/11/16/18098503/loreal-drunk-elephant-skinceuticals-lawsuit -
@ngarayeva001 aha that might be where I remembered seeing it from! Big solution of Liquid Germall would be my choice- but their ingredients list doesn’t show any preservatives which is a bit concerning, and they claim to be free of parabens and formaldehyde releasers. Considering you can find actual chunks of fruit in their bottles I wouldn’t trust many other preservatives to keep that formula safe.
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@Belassi 😆 and do you still need to change every 5,000 miles?
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DeoPlex® Natural Deodorant from Carrubba (INCI Saccharomyces Ferment) worked well for me at 1% and covered a nasty cheese-like smell from a probiotic
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A mushed banana would be tricky, I don’t think you could realistically preserve it. Cosmetics typically go for very long shelf life of say a year, maybe 6 months after opening. Plus I can’t imagine the stickyness of mushed banana would have a great feeling
An extract would be much easier like doreen said. Glow recipe uses actual fruit in their product but they soak it in preservative
https://www.youtube.com/watch?v=Rzygqzim35A -
ditto’d. we were using formulator , very decent software in my opinion with pretty much every capability you need available or able to add in- but there’s yearly subscription fees that can be a bit cost prohibitive
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@lmosca Internecivus raptus extract is amazing, you’ll have to share your supplier 😆
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I like Michelle https://labmuffin.com/ if you’re looking to learn, I think she does a good job and haven’t noticed anything erroneous.
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Montanov 202 will make a nice white formula (Arachidyl Alcohol (and) Behenyl Alcohol (and) Arachidyl Glucoside ), if that’s something you can get your hands on. I think smaller emulsion size would also make the cream appear whiter
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I’ve used oilkemia 5S with pretty good success (INCI Caprylic/Capric Triglyceride (and) Polyurethane-79), though the feel was about what I expected from an oil gel- could have been my lack of silica and poor oil combo.
The ajinomoto stuff does look awesome but you have to heat it very high -
Glass is nonreactive, aluminum could have interaction with components of the formula, could leach and discolor the product. If it’s coated you’ll need to find out with what.
And more obviously aluminum is opaque so harder to get a big picture view of what is happening to your formula. Glass could even be cleaned in a base bath and reused (provided it is clear of major scratches), personally I wouldn’t trust a metal container
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Good points already made- what is your final pH? GMS SE is anionic and works better for higher pH
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leucidal liquid SF (Lactobacillus Ferment) gets touted as a probiotic- do you have that or the radish root?
Which Phytomulse? When you post ingredients it’s best to include INCI since not everyone knows/can access what is in the trade name. I’m curious how that emulsifier does with your pro/prebiotics, usually those are high in electrolytes and cause stability issues
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Toner has got a very muddled meaning I think. There are astringent toners which would be your alcohol, witch hazel, etc. These are actually meant to ‘toughen’ the skin by causing protein precipitation.
Somehow toners also became the term for mists or refreshers that are just solutions with a few humectants, or even acid toners with some AHA/BHA.
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It will work for hand sanitizer, and nothing that thickens for those products is ‘easily available’ right now, there are still supply issues with lots of raw materials. But normally yes you can get sepimax zen from Seppic or online repackers
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There was a very recent post on this topic
https://chemistscorner.com/cosmeticsciencetalk/discussion/7475/how-to-use-buffers-in-cosmetics#latestBasically if you know what pH you want your formula to be you can select a buffer that has a range encompassing your selected pH. Citric acid should be fine for 5.5, and with a little base (sodium hydroxide would work well) you can create the sodium citrate in situ.
So make your toner and adjust pH at the end using a combination of your acid and base. You would then check the sample over a period of time to see if the buffer remains effective
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sepimax zen (INCI Polyacrylate Crosspolymer-6)
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@lmosca hey thanks! One more question- so why is it EDTA seems like the big name chelator for lots of skin care? Seems to complex the same things, does the pyrophosphate have the same environmental issues?