belassi
Forum Replies Created
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Absolutely expect a call. The problem is why do we ask for samples? To design a new product or test an idea. Pretty impossible to estimate sales and therefore raw materials!
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ULProspector? Samples? Sure. There’s also Specialchem. But you need to be a business to get an account. Not that difficult really, depending where you are. In the UK for instance a Limited Company is cheap to set up and a Web site too.
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Great post Bob, very informative, thanks.
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Solutions (e.g. shampoos, bath preparations and hand cleansing preparations) 0.5 - 1.0 %
- Your pH is very different. -
Lithium hydroxide? And aluminium? You’re lucky it hasn’t exploded. Hydrogen is quite inflammable.
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the smell is because of bacterial growth! Preservative required!
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It can be done but it needs to be fresh. Microwave. And it ends up like hot process.
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How did you try to melt it?
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I suspect it may be a preservative, because it has a functional aldehyde group like formaldehyde. But of course it might not be broad spectrum.
We have one test result so far on the prototype formula. It worked about 85%. I am going to do quite a few experiments but I believe I am about 90% of the way to a finished system. I already have a suitable clearing shampoo formula and also a finish conditioner, so the other two parts are in place. I’ll create a box package for it. -
Thanks. It works fabulously well.
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Palm oil. No, it doesn’t go crumbly. You were given incorrect information. But I do reduce it to 30% if I am using a fragrance that accelerates trace too much.
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soap, which is also an anionic detergent, in contact with water, leaves an alkaline residue that is very harmful to the hair and skin and that precipitates in the form of calcium salts which accumulate in the hair strands, leaving them opaque and tangled
You should never use alkaline products on the hair. -
Got Quickpearl PK3 available?
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Yes, almost certainly that is what happened. You have free oil and water, once the pH drops, bacteria can begin to grow. Rather than adding a preservative you might think about changing the packaging system so that the customer uses it as directed.
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You don’t have any thickeners in there, that’s why. Try adding 2.5 to 3.5% Glucamate LT.
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Also see this interesting Dupont paper. I had no idea there were skin care applications.
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It’s interesting to see that Lisse are using the same active but they go to all sorts of lengths in their information to obscure that fact. I’d call their information downright misleading, actually. They specifically say they do NOT break the keratin bonds. That’s nonsense because that is exactly what glyoxilic acid does.
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No, Ozgirl. Kemcare is a large multinational distributor, they distribute commonly available materials. Sabo is unknown here. Mainly we have Lubrizol, BASF, Croda.
Bill, what can you tell me about that S.O.S material? I am very impressed with this pearl, I was expecting foam to be less, but instead, it’s massive. And cold process too. -
Maybe it’s Quickpearl PK3?
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Not here. I’ve no idea who Sabo is. Maybe only in Australia? It’s probably a BASF or Lubrizol product.
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Test strips. Yes. I often use test strips, usually during prototyping work. These come, generally speaking, in four types:
1. Litmus. Good for testing the crossing point at pH neutral, but useless otherwise.
2. General purpose low cost. These are usually a sort of mustard colour and turn different colours according to pH. Not very accurate in my opinion but can be useful as a low cost option in early experimental work.
3. Wide range 5-pad strips. A lot more pricey, these are plastic strips with 5 small pads of colour material stuck to them. You interpret the pH according to the colour combo. In my opinion these are pretty accurate, certainly to plus or minus 0.5
4. Similar to (3) but with just two pads, the 5.5 - 8.5 strip. This is more accurate than item 3, when you know that you’re working within that pH range. Can generally be interpreted to plus or minus 0.25 -
Right. I have prepared 100mL of a simplified formula and we’re testing this today, I think. I thickened it with Glucamate LT. The pH came out at 3 - 3.5 so I am wondering, do I need a preservative at all?
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Well, I just this minute prepared a new formula with pH at 3 to 3.5 and thickened it without problems using Glucamate LT.
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Sure, no problem. In practice I find that the majority of creams with the exception of carbomer types, tend to naturally be in the desired range and need little or no adjustment.
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If you can actually formulate something that grows hair, you’re going to become rich. I’ve been trying for years and the closest I got was using glycrrhizic acid.