Abdullah
Forum Replies Created
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What is your formula?
PE 9010 and EDTA may be enough.
No need for IPBC.
If you wanted to add another anti fungal, add sodium benzoate.
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I think this mechanism only works against gram negative bacteria. And yes GLDA does this too.
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Agreed with @fareloz
In one line of my products which are claimed fragrance free i add 0.005% fragrance enough to mask the unpleasant smell of product.
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This is about efficiency of ECT.<div>
https://drive.google.com/file/d/14HqkYFzfSK0WegppR_yz8ImP9Xf5-h1b/view?usp=drivesdk
Interesting thing is that even unpreserved products pass the test in several of them. I don’t know why.
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Looks like your problem is wiith fungi.
Maybe some IPBC will help.
@PhilGeis what is your opinion about this?
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Phenoxyethanol
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I would say go for pH 4 and never above pH 4.8
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Your caprylyl glycol + 1,2 hexandiol and potassium sorbate will be a better option at that pH.
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caprylyl glycol + 1,2 hexandiol is 50:50.
What is your pH?
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Remove panthenol and glycerin
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MGDA might be better than GLDA but at such low pH the only option seems to be phytic acid.
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Isn’t the free formaldehyde from releasers as much reactive as from formalin in the same product, package and condition?
If not why not? Both are free formaldehyde.
Those parts that are not free will not be reactive but they don’t do any preservation too.
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Got it
As i am using formalin which is 37% formaldehyde, i wanted to know how it compares to these releasers.
For example instead of 500ppm DU i want to use 100ppm formalin to get about the same amount of free formaldehyde for gram+ bacteria. Is this a good idea?
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Got it
Thanks
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Thanks
To make sure i have understood it correctly, does the chart mean that with 0.49%, 0.3%, 0.46% DU, 0.02%, 0.02% & 0.06% formaldehyde was released?
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@PhilGeis in this paper Table V and Table VI, diazolidinyl urea 0.25%+ CMI MI 3ppm failed for Candida albicans but diazolidinyl urea 0.125%+CMI MI 3ppm passed with A criteria in the same cream product. <div>
Any comments on why this happened?
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Remove it
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What is in the product?
Never mix with Tween 80.
Heating the product a bit or high shear mixer will accelerate dissolving.
You need something for gram+/y/m too.
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Yes peg-12 dimethicone is a good option
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No
I say that because at pH 4 potassium sorbate is better option than CHA in anyway and caprylyl glycol + 1,2 hexandiol is better than caprylyl glycol alone.
0.15% potassium sorbate at pH 4 is more powerful than 0.06% CHA
0.15% potassium sorbate is less expensive than 0.06% CHA
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What ingredients are in your product and what is your product?
This preservative doesn’t work well in surfactant systems.
I would not use less than 1% in any case.
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According to this chart i said phytic acid is stable at lower pH.
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Why cetyl alcohol and not cetearyl alcohol?
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How so? ????????
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I don’t know about its biochemical explanation too but for use using it makes skin darker under the sun compared to applying nothing. Although applying nothing will make your skin burn faster.