Abdullah
Forum Replies Created
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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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Abdullah
MemberJune 6, 2023 at 6:52 pm in reply to: Preservative that ONLY kills Gram-negative bacteriaPhenoxyethanol
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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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Abdullah
MemberJune 3, 2023 at 12:06 am in reply to: (‘Green’) chelant recommendations at pH ~3.5 ?MGDA might be better than GLDA but at such low pH the only option seems to be phytic acid.
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Abdullah
MemberJune 1, 2023 at 9:01 pm in reply to: Should Polysorbate 80 solve my separation issue?How much oils do you have?
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The problem with petrolatum is it makes your skin darker. I don’t think it causes acne.
I have some acne but not where i apply petrolatum.
Start from 5-10% and see what you like the most.
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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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Abdullah
MemberJune 12, 2023 at 12:10 am in reply to: Preservative that ONLY kills Gram-negative bacteria@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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Abdullah
MemberJune 7, 2023 at 7:27 pm in reply to: Preservative that ONLY kills Gram-negative bacteriaWhat 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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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.
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My full ingredients
Glycerin, petrolatum, mineral oil, cetearyl alcohol, GMS, SLS, xanthan gum, acacia gum, EDTA, preservatives, citric acid, fragrance and water.
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Yes. Specially if you are in sun for some time during the day and apply it to face 1 or 2 time a day compared to applying nothing.
I am making a moisturizer with petrolatum as occlusive ingredient and 90% of users have noticed this effect on face.
My product has petrolatum, mineral oil and glycerin
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At 1:1 ratio viscosity is on top as @chemicalmatt said. In my 3% of each surfactant will give you enough viscosity without any extra salt.