belassi
Forum Replies Created
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I hate to say this but I believe you are going to have to change the vessel. Retire that one to some such use as mixing shampoo. Even then you will need to passivate it.
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Your “stainless” … isn’t.
Ask the supplier of the container what specification the steel is.
Try leaving a sample of the Benzalconium chloride in contact with the container.
The passive layer on stainless steel can be attacked by certain chemical species. The chloride ion Cl- is the most common of these and is found in everyday materials such as salt and bleach. Pitting corrosion is avoided by making sure that stainless steel does not come into prolonged contact with harmful chemicals or by choosing a grade of steel which is more resistant to attack. The pitting corrosion resistance can be assessed using the Pitting Resistance Equivalent Number calculated from the alloy content. -
I’ve used the palmitate (Apprecier) with great results in fading photo-age spots.
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That substance is specifically mentioned in relation to darker skin shades. I suggest using one of the more advanced vitamin C derivatives instead.
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In my opinion you are using a dangerous ingredient.
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Bentonite is not a suspension agent. It will separate out in its own right. Also, Bentonite is quite aggressive on the skin. A carbomer would be more appropriate.
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You might be interested to know that I was chatting to my dentist and an endodontist recently and asked them which was better for gum health in their opinion, normal type or bicarbonate type. They both immediately said “bicarbonate”. One example is Parodontax; I use it myself.
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First of all, I am glad to see if I can help because you have already gone to the trouble of experimenting with materials, rather than just asking to be spoon fed. As a result of your experiments you determined that glycerine and EOs don’t mix without an emulsifier, 100% correct.
Glycerin is really not the right thing. It is polar; your oils are nonpolar. Therefore we need to be looking for an effective thickener for nonpolar solutions. (Any mix of oils is technically a solution).
Now, this is not really near my area of interest, and I have no experience with it myself, but from the literature, you might take a look at the sugar ester, Sucragel (you’d want the variety that comes without added oil):
Sucragel from Alfa Chemicals, distributed by Impag, is a liquid emulsifier system of natural origin and is also a good thickener for all nonpolar lipids. The product range is based on sugar derivatives and makes the interesting properties of sugar esters available in a user-friendly form. Using Sucragel it is easy to produce highly viscous oily gels. It can convert almost any non-polar emollient into an oily gel. -
Thanks Elise. I noted the price at the Herbarie, but I suspect that Glenn is the primary distributor. I’ll see if I can update you if they quote me. Even at the Herbarie the price is $1800 compared with $2400 per kilo. I am probably going to include this in our anti-acne gel since apparently it’s effective for that too, but not at a very high level, perhaps 0.25%
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Thanks for this. I have just sent a mail to Glenn Corp to see if I can get some of this to compare with Apprecier (L-Ascorbyl 2-Phosphate 6-Palmitate Sodium)
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I would describe it as a rancid fat smell. I have some oleic acid here and it is not nice at all.
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Yes, no glycerin is produced.
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The acid form will smell kind of rancid because it’s the FFA - free fatty acid - form. And will react instantly with lye. Not good for soap in my opinion.
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what is the pH?
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OMG. Hilarious.
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An example from the article in the NYT:
All told, European officials have restricted or banned more than 1,300 chemicals and groups of chemicals, experts say; the F.D.A. has prohibited 11 ingredients. That shocking discrepancy makes clear how far behind the United States is in this area. It also shows that sensible regulations will not cripple companies that make cosmetics, since many of their products are already covered by European law.
From this I propose that the FDA ingedient regulations are stupidly lax; yet at the same time the FDA (to quote one example) doesn’t accept that there are many alternatives to salicylic acid for treating acne. We market a treatment that our customers tell us is effective; but in the USA I would not be able to label it as an acne treatment. -
Less is needed. Compared with the whole of the rest of the world, the US system panders to huge corporates.
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Mica is a standard component in “bare mineral” makeup and perfectly safe but you don’t want to get larger flakes like glitter in your eyes.
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Yes in Mexico City there appears to be a distributor. I will talk to them. Does look interesting I agree. Perhaps I should make it clear that I am not looking to “invent” a magic regrowth formula, but something that will stop excessive hair loss, which is often caused by fungal problems or sebhorreic dermatitis. As such I am taking a holistic approach in that I want to:
reduce inflammation (aloe vera, calendula)
stimulate scalp circulation (caffeine, quinine)
kill yeasts such as malessezia (antifungals - monolaurin, thyme extract, essential oils tea tree and neem)
clear the hair follicles of embedded sebum (jojoba oil, SA)
+ the “magic” bits that “might” encourage growth:
stevia extract
Glycrrhizic acid -
^^^ This. Soap is notoriously difficult to measure.
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You will need to talk to someone with large scale experience. Sorry I can’t help with that.
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Further:
I backtracked along your previous thread and read the patent that Bob kindly referenced. Pretty poor patent really because among other things it failed to refer to the K/Na ratio. Anyway, what I noticed was the “free stearic acid to ensure that alkalinity is not excessive” or words to that effect.
Which leads me to suspect the pH may be around 9 perhaps and if so a preservative will be required. You will need to pick one that is effective at that pH and also as Microformulation pointed out, one that is consumer marketing friendly. -
Glad to hear everything is turning out OK. Regarding your newbie comment, I do tend to get pissed off when someone sends me a question as to what is a graduated cylinder instead of just Googling it themselves. That’s a very different attitude to what you did. I think everyone here respects the newbie experimenter, but I don’t think we enjoy spoon feeding.
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What is the pH?
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Yes, I was thinking of caffeine. I will have to import it though. Not salicylic acid? After my trials of licorice, I think I will include that.