johnb
Forum Replies Created
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I very much doubt that yogurt is present in any useful amount and is there for marketing purposes only.
Your formulation differs widely from the product shown in your link:
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AQUA
SODIUM LAURETH SULFATE
SODIUM CHLORIDE
COCAMIDE DEA
COCAMIDOPROPYL BETAINE
GLYCERIN
PARFUM
YOGURT
COCO-GLUCOSIDE
PROPYLENE GLYCOL
TRIETHYLENE GLYCOL
TETRASODIUM EDTA
CITRIC ACID
STYRENEACRYLATES COPOLYMER
MAGNESIUM NITRATE*
MAGNESIUM CHLORIDE*
DMDM HYDANTOIN
BENZYL ALCOHOL
METHYLCHLOROISOTHIAZOLINONE*
METHYLISOTHIAZOLINONE*
CI 19140
CI 14720
I would definitely replace the Kathon CG (each of the items in the list which I have starred). I would also avoid DMDM Hydantoin (formaldehyde releaser).
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AQUA
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https://avantilipids.com/tech-support/liposome-preparation/
Obtained with the help of Google.
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A most important part of option 1 is the dyestuff - in fact it is THE most important. These products do little more than provide colour and a slight foam to the water from the cistern. The dilution rate is so vast (just think, a 50gram block slowly dissolving in probably hundreds of litres of water - almost homeopathic in concentration).
Similarly with the chlorine releasing blocks , they do little more than release a chlorine type odour, the amount of chlorine released per unit volume is miniscule.
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Any of them of use??
No. They will dissolve far too quickly.
I described suitable ingredients in my first reply. Whether these are available to a small user in your country, I don’t know.
Do NOT try to make any of the TCCA products. It is very unlikely that a home user would be able to obtain the materials but, in case you are, heed this warning ver
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Gooooooogle is your friend. Just look up Liposome preparation
In my view, liposomes are almost on the same level as fairy dust in cosmetic products. Like microcapsules, the majority of the payload in a liposome remains there, never to reach the target.
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Far easier to use a glycol ester pearlising agent.
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I thought my reply, above, would indicate that there is no industry standard format - or are you prepared to ignore the whole of the European cosmetic industry?
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and it seems there is no analytical chemist here, ya?
The material is very difficult to detect in any meaningful way.
The methods suggested by the EPA are to be found in Technical Fact Sheet – 1,4-Dioxane - US Environmental Protection …
page 5
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You could make the coloured ones at home - if you are able to obtain the ingredients - which may not be easy for you. To be honest, it isn’t really worthwhile doing-it-yourself.
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These “tablets” are usually one of two types:
1. A cast mixture of a high melting point nonionic detergent (perhaps stearyl 25-ethoxylate) and a lower melting point ethoxylate such as stearyl 5-ethoxylate. The lower ethoxylate is relatively insoluble in water and gives the longevity, the high melting point ethoxylate enables the tablet to have sufficient “body” to withstand handling. They can contain up to 5% of colorant such as FD&C Blue No1. Often wrapped in a PVA film to protect against colour transfer whilst handling.
2. A hard pressed mixture of conventional toilet cleaner alkalis or of trichloroisocyanuric acid. This last has a low water solubility and can last several weeks in a toilet cistern slowly releasing its contained chlorine. TCCA is a VERY POWERFUL OXIDISING AGENT and must be handled with great care and the manufacture of blocks should only be attempted by specialist manufacturers. It cannot be mixed safey with other materials.
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Note that 1ml in 9ml is 10%, not 1%.
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Do you have any antimicrobial preservative in the product?
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It is not possible to comment on your problem without information on the components of your product.
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Be careful not to overdose the cationic - especially mixed ones. Cationic overload can give products some very unpleasant wax-like coatings on hair which can be difficult to remove.
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Do you know the proportions of each material in your product or are you expecting that information to come from here?
To answer your specific questions:
Polyethylene glycol is NOT the same as propylene glycol and they are not interchangeable.It would be unwise to swap about with preservatives without testing the product.
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There is a slight misunderstanding about what I wrote.
My suggestion is, to make things easier, is to substitute xanthan gum with something known to be compatible with cationic systems.
I doubt very much that the xanthan content of the conditioner you are trying to imitate, judging by its position in the LOI, has much effect on the holding power of the product and, even if it did, there are plenty of gums with better properties in cationic products e.g. cationic guar: hydroxypropyltrimonium derivative.
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I have managed to make a “sort of” stable emulsion using a homogeniser.
The esthetics of this on the skin is quite unpleasant. It is strangely sticky and does not absorb well into the skin.I’m not suggesting using homogeniser, it’s just that I saw that as an easy way of getting at least a semistable product for an initial in-use test. The homogenised emulsion is slowly separating now (eight or so hours after making) but I suggest you give some attention user acceptance of this type of mixture before you proceed much further.
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Why make life difficult for yourself?
Xanthan gum merely acts as a viscosity modifier and there are plenty of types of those around which would be suitable in a cationic medium. -
No need for Decalact or Decalact liquid.
You can buy small quantities of triethyl citrate from Amazon.com
https://www.amazon.com/Triethyl-Citrate-Flavor-Fragrance-Compound/dp/B014PQ0BYE
There are several sizes available.
TEC is relatively harmless. It is used in foods as a flavour carrier and as a stabiliser for egg whites used in meringue. It is used as a nontoxic plasticiser in childrens toys.
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My thoughts are:
BTMS-50 too high
Cetyl alcohol too high especially when the cetyl alcohol in the BTMS is taken into account
Vegemoist (betaine) too high
Fragrance oil way too high
Panthenol high
Aloe vera no point in its inclusion.The amount of acid necessary to produce an acidic pH will depend on numerous things, not least the pH of the water used. Measure the pH with a meter, or pH papers if you’re working on a small scale, and adjust as necessary. I Doubt you’ll need more than 1%.
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Christmas greetings to you, MsAntipodes.
Have you considered the user acceptance of this mixture? It does seem a rather odd combination, even if it were possible to obtain a stable emulsion.
I could imagine that glycerin at that concentration, in the absence of water, could act as an agent to draw moisture from the skin rather than act a moisturiser.
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You could try partially neutralising the lactic acid so that you have a mixture of lactic acid and one of its salts (sodium, potassium, ammonium).
To increase viscosity you could try replacing all or part of the cetyl palmitate and/or stearic acid with cetyl, cetearyl or stearyl alcohol.
The quantity of acacia seems rather high - what is its function in the mix?
I would not rely on 0.2% salicylic acid as an effective preservative.
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What is the function of this product? Is it required to be water free? If not, how much water is tolerable?
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The EWG may boast a learned panel of experts and consultants on their advisory boards but they probably have as many cranks, charlatans, loonies and “experts” in poor science there as there are in any other anti-progress pressure group - flat Earth societies or Elvis is alive and well and living on the Moon.
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Acacia gum has its own unique properties and is not interchangeable with other materials. It can work synergistically with other gums - some such combinations are marketed.
One thing to note with acacia is that it is the exudate from a tree and is liable to contamination with all sorts of detritus and subject to variations in composition and properties depending on the growing conditions of the parent tree, seasonal differences (harvest time) and so on.