Perry44
Forum Replies Created
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At 4% surfactant and wax you are not going to get much foam. Try getting rid of the wax and increasing the surfactant level. You might try doubling the levels you have.
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No problem! Thank you for participating. The forum was really set up for people just like you who have an interest in formulating, in chemistry, and a desire to know what is true versus looking to confirm what they already think is true.
Thank you also for the great work you do communicating what you learn on your various social media channels. Keep up the great work!
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Yes, we have a list of potential suppliers. However, raw material availability depends on where you are located in the world.
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No. Cosmetics don’t require sterilization in manufacturing. Having said that, ingredients are tested to ensure they have low/no microbe counts & you shouldn’t use ingredients with obvious debris floating in it.
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It’s turning thick and white because you’ve reached the temperature below the cloud point of your solution. When the temperature drops below the cloud point, the solubility of some surfactants or other components in the formulation decreases. This reduced solubility leads to the separation and a cloudy appearance. This used to happen to some of the VO5 Shampoo formulas I worked on.
There are a bunch of things you can try like adding a hydrotrope (sodium xylene sulfonate), reducing surfactant level, adding some non-ionic surfactants, adjust salt levels, pH levels, etc. Every system is different so no one answer will fix it.
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Now if they could just do something about removing the fire from candles! I hear that stuff can be really harmful.
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Well most important is to put in a preservation system. Next, you’ll have to test stability over time.
Then you need to determine the claims you’re going to make & how you will prove what you say about the product is true.
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So a mouse study shows a correlational effect of hair loss and using these products? No controls? No human subjects? Seems suspect.
The problem is that it would not be hard to add some proper controls and get some good information. That would be really interesting if these products actually caused hair loss while other products (that use pretty much the same ingredients) don’t.
The whole endeavor seems sketchy.
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No. These are the only allowed color additives for cosmetics in the US.
https://www.fda.gov/cosmetics/cosmetic-ingredient-names/color-additives-permitted-use-cosmetics -
For price and performance, Glycerin wins.
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Looks like they were mostly microbial contamination problems. Don’t really expect that from big companies like L’Oreal but it can happen to anyone I guess.
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Without a list of all the ingredients in your formula, it is difficult to give you any answer.
My blind guess is that your product is contaminated with bacteria.
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No, those ingredients should work fine at lower pHs
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We could be of more help if you list all the ingredients in the formula. It’s probably some kind of oxidation reaction.
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Haven’t used it myself but it’s an alpha hydroxy acid and yes, they claim it is an antibacterial.
I suppose based on papers like these. https://pubmed.ncbi.nlm.nih.gov/33402087/
pubmed.ncbi.nlm.nih.gov
Antimicrobial Properties of Mandelic Acid, Gallic Acid and their Derivatives - PubMed
MA and GA present an excellent health-promoting tool and are valuable starting materials for the design of new compounds such as metal complexes with alkali, or alkali earth metals. The lipophilic, antimicrobial, and pro-oxidative properties act synergistically, supporting the pharmacological … Continue reading
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The ends of your hair are more damaged than up the fiber closer to the root. The frizz happens there because the fiber absorbs water unequally on its surface. Frizz is caused over time because it just takes time for your hair to absorb or lose moisture from/to the air.
Two suggestions.
1. Use a conditioner. Shampoos are not very good at conditioning hair (even two and one formulas). PQ10 and PQ7 are ok, but they are nothing compared to a proper conditioner with cationic surfactants.
2. Add a silicone. If you don’t want to use a conditioner, silicones are needed to coat the ends of the hair, prevent moisture absorption, and thus inhibit frizz.
No, the pH of your formula isn’t really relevant, although it should be more like pH 5.0. Use Citric acid to adjust it down.
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On the claims…
“Instant hair transformation in 8 seconds” - this can mean anything so it doesn’t mean much. Just getting your hair wet instantly transforms it.
“…silkier, shinier, healthier looking hair” - again these are subjective claims that could be supported by any product.
“no silicones…etc.” - just claims about the formula not the benefits.
The ingredients providing the most benefit are Cetrimonium Chloride and Behentrimonium Chloride.
A substitute for Myristyl Alcohol would be Cetyl Alcohol.
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They just accept a lower foam production formula and accept a cleanser that doesn’t work as well as it should. People mostly can’t tell much difference.
But if a consumer wants a good waxing result, waxing should be put on after cleansing. -
You should be able to thicken the system with Sodium Chloride (salt).
As far as getting foam but also providing a wax film, that doesn’t really work. The more wax you put in a system, the less foam you are going to get. So, if you want more foam, you have to remove the wax (or significantly increase the detergent).
You can’t really create a good cleanser and have it deliver wax or a coating to the hair. Cleanser are meant to remove things, they are not meant to leave things behind. This is why adding wax is typically done after the car has been cleaned.
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See what @fareloz said
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Well, there are no obvious answers. However, I’d suggest you do a simple knock-out experiment to isolate which ingredient might be causing the problem. A knock-out experiment would simply be a series of batches each of which is missing one ingredient. You would replace the missing volume with water. So, if your batch normally calls for 1% HA, you would add 1% extra water instead. Then see which batch turns pink.
It could be lots of things. Metal ions in your water, oxidation of ingredients, some unknown contamination in your ingredients, etc.
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Yeah, most people in the US are buying lotions from Olay, Suave, Neutrogena, etc. Online sales is a big piece but in-store sales still represent a much greater piece of sales.
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I don’t have better advice than what @PhilGeis has suggested. He is an industry expert in preservation & his advice is most reliable on the topic of anyone on this forum.
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If you are selling a product, you must declare the LOI on the package anyway.
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Yeah, on paper your formula looks fine. You don’t mention the conditioner pH, but it should be lower to work better (around pH 4).
Is there some product on the market that works well for your frizz?
I ask because when hair is damaged, even the best rinse-out conditioners can’t do much. You might have to go to a leave-in conditioner.