johnb
Forum Replies Created
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With judicious formulation it will be very rarely that you need a homogenizer.
Many (most?) cosmetic emulsions are manufactured with a propeller mixer.
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I am not aware of any small scale suppliers of this material.
Before you go much further, take a look at https://chemistscorner.com/cosmeticsciencetalk/discussion/comment/17362/#Comment_17362
You might not want to proceed.
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Pre-made product bases, are on the whole, average quality products formulated such that they have the largest sales potential.
What sort of quantities are you interested in? You may find that minimum quantities from the suppliers you highlighted far exceed the amount you would be interested in buying.
Fragraces should not be a problem provided the fragrance is designed for that end use.
Regarding silicones, I can’t see any reason that anyone would want to include these materials in a shampoo - most silicones act as foam inhibitors and those that do not, in my view, do not add anything to the prime function of a shampoo either.
Quats are mostly unstable in shampoos. There are cationic conditioners that can be mixed into normal anionic shampoos but these are specialist materials and you ought really to learn some of the fundamentals before progressing in that direction.
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What about the sites dedicated to supplying home crafters?
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Not wishing to insult you but a knowledge of basic arithmetic is essential if you are to progress an almost any field of life that involves numbers.
The major problem, though, is not the concept of % but the sheer inaccuracy of using spoons for measurement.
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0.5% to 1% is the norm with ZnPTO.
Be warned - it is extremely difficult to formulate into a stable suspension without contravening one of the hundreds, perhaps thousands, of patents that P&G have covering Head & Shoulders. Even though it was introduced in the 1960’s, P&G still have patents covering one or other aspect of the H&S formula.
My patent search engine produces 2297 hits using the keywords: zinc pyrithione procter gamble
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That is a case of try and see for yourself, I feel.
I’ve offered my knowldge on this for making traditional type floral waters.
Loading the water with other materials does not correspond to my idea of a floral water.
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That amount and that proportion of essential oil would likely result in the user smelling like a cough sweet.
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The problem with water soluble hair products is that they wash out during rain showers.
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The first and most important thing is to ditch the teaspoons and buy a balance. It is not the “sin in this community lol” -it is an absolutely essential part of consistency.
You can get small, portable electronic balances from Amazon (and numerous other places) at a very low price.
There isn’t much really to comment on until you have your proportions of components measured to a reasonably accurate degree.
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There are numerous contract manufacturers in the UK and Europe but I don’t know if they contract as low as $300 or even £300.
Best look in one of the trade magazines (e.g SPC) or check with the CTPA.
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Most likely the polysorbate that is giving the soapy taste. Sodium benzoate is just slightly bitter and at normally used concentrations in soft drinks/mouthwash and so on it is non-detectable.
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I am far from convinced that this is a biological growth on the substance claimed on the label.
I am not familiar with 4-chlororesorcinol per se but I do know that the parent compound (resorcinol) and the parent of that (phenol) are both volatile at room temperature and, on storage, deposit fine crystals on the walls of the container or on the main body of the product. These are easily identifiable as they often have a different crystalline form and colour.
Have you carried out any I.D. testing on the deposits?
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Price rules that out for a commercial
shampoo. Think I will talk to Symrise directly. They have a branch in
Mexico.That is a small user price. I’m sure the commercial rate is much lower than that.
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According to the data sheet for Crinipan AD (climbazole), it is soluble in alcohol and glycols.
Try dissolving your climbazole in a glycol (propylene glycol, propane 1,3 diol, butylene glycol, isopentyl diol etc.) and slowly diluting with water until precipitition occurs. This will give you an idea of the concentration of glycol necessary.
You don’t need anything more that this - a simple solution of climbazole in glycol/water. Provided there is sufficient glycol present (20% or so) you don’t need a preservative or stabilizer.
Climbazole is now available in the UK from http://www.naturallythinking.com/ priced at 10g for £5. Larger pack sizes are available.
The product is of European origin and is a repack of Crinipan AD (Symrise).
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I find your ideas on the origins of London honey interesting:
“Talking about bees, I think urban bee keepers find all kinds of
different colour honeys in London depending on what happens to be tipped
in the local dumps.”There was me thinking that honey was made from the nectar of flowers
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This thread dates back to 2014 where the main subject was green tea and its various attributes - fine, I have no problem with that howver, the thread has just been hi-jacked by @Rutuja who wishes to include green tea in a functional product, namely a sunscreen.
This inclusion is, apparently causing concern over pH adjustment/control. My own concern is why is green tea included in the formulation. It doesn’t have a real function in a sunscreen - hence my use of the term “fairy dust”.
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I don’t think that is a good reason for including what is, seemingly, fairy dust in a functional product.
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What is the purpose of the green tea in this product?
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The original product names for this combination:
Sepigel 305 (personalformulator), Sepiplus (lotioncrafter),
simulgel INS 100 (chemistrystore renamed it: body cream & lotion
creator) or Simulgel EG (makingcosmetics renamed it: gelmaker emu).See this forum https://chemistscorner.com/cosmeticsciencetalk/discussion/990/cold-process
I don’t think there are any other sources for small users. -
Pete, this effect has been studied by the research departments of some extremely large companies and I think that if there was any more to be made public, it would have been done by now.
The biggest obstacle in declaring a material or essential oil an insect repellent is that for the majority of materials, whilst it may be a repellent to some species, that same material is an attractant to others.
As an example, some years ago I worked for a company who were investigating the effects of lavender oil (and it components) on various arthropods. It was found that several components of lavender were highly effective in repelling a number of insect species. However, it was pointed out during the investigations that honey bees found lavender highly attractive - so much so that, when available, lavender formed the exclusive nectar source for them (you can even buy lavender honey).
That, and similar findings with other plant species, put an abrupt end to the investigations
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The copper sulfate data given by Pete is from Safety Data information on the material per se, not on the tiny amount that would be found in a finished product.
There are several cosmetics and semi-pharmaceuticals which contain the same material without issues.
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Gelmaker EMU is supplied by makingcosmetics who will supply to the UK and Europe
http://www.makingcosmetics.com/GelMaker-EMU_p_119.html -
According to the LOI I found Lander Crystal Ice does not contain salicylate but does contain Menthol in a base of FD&C Blue #1, Camphor, Carbomer, Isopropyl Alcohol,
Methylchloroisothiazolinone, Methylisothiazolinone, Nonoxynol - 9,
Propylene Glycol, Sodium Hydroxide, Water.