OldPerry
Forum Replies Created
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@diycosmetics - thanks for your perspective. I think one of the objections of many chemists in this thread is that iron oxides just aren’t natural but many companies market them as such.
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I’m not familiar but I did find reference to Emcol E-607S and Emcol E-607L
It’s not PEG-60 Castor Oil however.
From former chemical supplier Witco
Emcol E-607S - Steapyrium Chloride
Emcol E-607L - Lapyrium ChlorideFound in this book on Cosmetic Formulations.
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@pradeep - I’d suggest you see this discussion about salicylic acid
https://chemistscorner.com/cosmeticsciencetalk/discussion/comment/15149/ -
Here is what @DRBOB@VERDIENT.BIZ means by a knock-out experiment.
https://chemistscorner.com/do-you-know-the-fastest-way-to-become-an-expert-cosmetic-formulator/Essentially, you make a series of batches leaving out one ingredient. Then you see what happens to the final formula.
I would think the Plant Oil would be your “solvent”
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What is “virgin aloe vera gel”? What is it supposed to do?
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You may have to clarify what you are asking.
What is a “virgin aloe vera gel”? Is there a product on the market called that?
What formula are you using currently?
What characteristics do you want to make better than the current formula? -
@Bernie_X - What size batch are you making? It looks so small.
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Interesting. At least people now know the FDA monitors websites.
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A 40C water bath might work. You have to test it and see.
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My 25% figure was based on my memory of studies. In looking up the published research I see I was not correct.
The effectiveness of Minoxidil is more like ~60%. This is based on a 1 year observational study of 984 men.
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The answer depends on what you are making the formulas for.
If you are making product that you wish to sell, then neither the mixer your using or a stick blender would be appropriate. A stick blender is strictly a hobbiest tool.
If you are just making product you want to use for yourself, you can probably just keep using what you’re using. But you need to make larger batches than 40 or 50g. At minimum you should be making 400 - 500 g batches. You can put the finished product in a warm water bath overnight to let the air bubbles resolve.
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And those essential oils are some of the worst offenders when it comes to allergens.
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No, this does not exist.
The only proven topical treatment is minoxidil and it only works for about 25% of people.
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Yes, testing a placebo (blinded) is an important check to see if ingredients are really doing something or we’re just fooling ourselves.
When investigating facts, ideas and whether something is true, Richard Feynman said it best…
“The first principle is that you must not fool yourself and you are the easiest person to fool.”
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@Doreen81 - I’m curious, how do you know your anti irritants are having any effect?
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My guess…no, they aren’t doing anything. But you should test as others have said to be sure.
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You might find our free report helpful. http://startacosmeticline.com
But I agree with @johnb. If you are going to start a cosmetic line creating the product is not nearly as important as creating a story and finding customers who want to buy it.
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Did you do a salt curve analysis?
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Imagine if “natural” cosmetic marketers had to label what is actually in their products rather then just putting names like “jojoba oil”, “aloe vera gel” or “blueberry extract.” Ingredient lists would be unwieldy.
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The only conclusions you can make at this point is that one of your products is stable for 5 days at 55C and two of them aren’t.
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No. This isn’t a proper stability test. You can’t test a formula for 5 days at any temperature to predict a year or even 6 months of stability.
Also, 45C for 2 months (8 weeks) is indicative of 1 year.
There is no super short cut for stability testing.
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That depends on what’s in the whole formula. The structure of cetyl alcohol in a system depends on many factors. However, sometimes it takes time for thickening to occur. Cetyl alcohol is not a good thickener compared to other things like HEC, Carbomers, etc.
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I’ve never seen any evidence that silicones would have this negative effect. Sounds like more fear marketing by “natural” brands.
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At best Aloe is a humectant / moisturizing ingredient so heating to temperatures below the BP of water won’t have any negative effect.
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@johnb - most hairsprays use DME because it has a good tolerance for water. This was required to meet the California VOC regulations of 55%. It probably wasn’t used more previously because it is more expensive than other propellants.