OldPerry
Forum Replies Created
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Agree with @Sibech - One of the great myths about natural formulas is that you can make them better (or even as good) as standard products.
You can’t.
Cosmetics are not natural. There are no moisturizing lotion plants or body wash bushes.
Silicones were invented to improve upon the technology that was around at the time. (hydrocarbon oils) When you formulate without silicones it’s like you are going back in time to when technology was not as good.
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If by “deformulating” you mean you are trying to figure out what someone else’s formula is, then you just have to look at their ingredient list.
If you are trying to use equipment to figure out the exact percentages, well that is probably not possible. It would be more efficient to just guess.
What specifically do you want those ingredients to do in the formula?
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It depends on the formula but in general, making a system colder will make it last longer (more stable). But when you freeze it that might cause some unknown instability or maybe not.
I should note that every emulsion or colloidal system is unstable. It’s just that the stability of good formulas is longer than it takes to use up the formula.
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Freezing products is actually part of a stability testing protocol. Some emulsions will separate if frozen and then warmed back to room temperature. If your emulsion stays together under those conditions, then it is considered stable. (at least in a freeze/thaw sense).
Colder temperature storage does generally make products last longer. But it can lead to instability.
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@Journeys - I’d suggest you start a new discussion. Click on the button on the right column. You’ll also need to provide more detail in your question to get a good response. (e.g. what kind of product are you trying to make?)
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Not surprisingly, I think they are mostly claims ingredients.
Proteins work as moisturizing ingredients (humectants) and film formers which might be able to protect from surfactant irritation.
The protein source differs in distribution of amino acids but I highly doubt you could show much effective differences. Just a marketing story difference.
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Thanks for the info. To build on that here are two other sources.
https://amazon.com (in the Beauty & Personal care section) Sometimes listed in the product information section
https://ebay.com - often the ingredients are listed or you can ask the seller to give you the ingredient list.
https://www.ewg.org/skindeep/ - while I don’t like to encourage use of this website because their rating system is BS, you can look up a number of products and click on “Label Information” to get an ingredient list. The claims are not listed. I’m not sure about the accuracy.
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If you were in the United States, I would recommend getting a lawyer. They would write a cease-and-desist letter threatening legal action if it wasn’t stopped and then it would go from there. I don’t know what the rules are in Brazil or Mexico which I believe is where you operate.
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I don’t think your questions have known answers. They also may not be answerable as phrased.
1. The best pH is the one that gives you the best product performance while still being safe. Product performance is going to be formula dependent so you’d have to experiment with different levels of pH and how it affects the particular parameter that you find important. In truth, it probably doesn’t matter.
2. I doubt anyone has studied the effect of pH 7.6 on hair over long term exposure. And the truth is, pH is a meaningless concept when you are talking about dry hair. pH is only meaningful when related to water solutions. The bottom line is that it won’t have any specific effect noticeable to consumers. pH 7.6 is hardly a “harsh alkaline”
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The only thing the glycerin will do is compete with the HA for available water. I doubt you’ll see any difference.
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@smok were you asking about SPF values?
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I’m going to be attending on Tuesday. I’m also teaching a course on Monday so will be there then too.
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Are you pouring it off at a hot temperature?
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If you want more hold, you’re going to have to put in less oily material. You might also put in some PVP
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What hair dye products use acid black 107? I couldn’t find any.
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Another solution is to use an Aloe Vera extract which is a 1% solution in something like propylene glycol.
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This is just a matter of experimenting. One might work better for your particular oil phase but they might just both work fine. The Oleth 10, 20 are liquids so they might be easier to work with.
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@Annyeap - Ultimately, you would have to test it but you can also look up the CMC of the surfactant (or ask the supplier if they have that number). Here is a published book of all kinds of surfactants and their CMCs.
Critical Micelle Concentration of surfactants
Or here is a shorter, more focused list.
https://www.stevenabbott.co.uk/practical-surfactants/cmc-values.php -
@MarkBroussard - Then you lick your arm and rub it over your head to complete the cleansing task :p
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A shampoo with 1% surfactant? I’m not sure how effective that would be.
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What do you want the PVP to do in the beard oil? You could replace it with something that performs the same function but is soluble in oils.
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@Annyeap - All shampoos are micellar. That is to say they have surfactants that produce micelles. If you want to make something you can call a micellar shampoo, just make a shampoo and call it that.
Micellar is a made-up marketing term. It has no definitive meaning. If you want advice, you’ll need to be more specific about what you think the term micellar means. That means you’ll have to describe how you want the formula to be different than a regular shampoo.
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@Lisani - What type of product is it? It’s not clear from the description in this discussion.
But if it is a leave-on cream, you can’t use Cetrimonium Chloride safely at 2-4%. The CIR limit for leave-on application of cetrimonium chloride is 0.25%.
https://www.dropbox.com/s/m6qe9ra97es9hj8/cetrimonium-chloride.pdf?dl=0
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I don’t think the FDA is going to ban everything except Zinc Oxide and Titanium Dioxide. They are just requesting more data. There will be no change in sunscreens for the foreseeable future.
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Just use parabens. They will be the least problematic and they have decades of demonstrated proof that they work.