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fareloz
Forum Replies Created
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Sorry, but I can’t believe you have ever prepared this formula. Salicylic Acid 1% will not dissolve in water solution.
Also, Alpha Arbutin requires 5-7 pH value to be stable and Lactic Acid is mostly neutralized in this pH range.
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Nothing wrong, these gel-formers do not tolerate low pH and electrolytes. It’s better to read recommended usage from manufacturer before trying.
I would suggest to use gums instead. For example Xanthan Gum, very reliable thickener. Or Hyaluronic acid (high molecular).
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Is it some kind of two-phase product to shake before use? If so you don’t actually need an emulsifier. Shaking will disperse the oil and create temporary emulsion
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I found the exact INCI:
- Water 50-75%
- Lactic acid 30-50%
- Sodium Lactate 5-10%
- Magnesium Lactate 0.1-1.0%
- Calcium Lactate 0.1-1%
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fareloz
MemberMarch 5, 2023 at 6:34 am in reply to: Saponified oils would solve a lot of the Clean Beauty dilemmasI thought saponified oils is basically another term for a plain soap…
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And?
You can say this about any skincare ingredient, even water.
What is your point?
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fareloz
MemberFebruary 23, 2023 at 3:56 am in reply to: Guar gum + xanthan gum as a suspension agent?I like how they marked Xanthan Gum as “sourced from non-GMO plant”. Does it mean everything else is from GMO-plants?))))
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Well it is obviously fake. Azelaic Acid is poorly soluble in water so you need a solvent. Solvent would be preceding Azelaic Acid. Also Ascorbic Acid is not stabilized and would oxidize in days giving color. Plus Carbomer should be neutralized to gel, but the product has a lot of acids and probably is meant to have low pH. So I don’t think this product is legit
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What do you mean? Fatty alcohols have been used for ages in o/w emulsions as structuring agents.
Edit: Sorry, I misread, you mean w/o…
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fareloz
MemberFebruary 13, 2023 at 5:05 am in reply to: Conversion of mix of different acids to conjugated base under certain pHThank you both! Now it is clear to me
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fareloz
MemberFebruary 10, 2023 at 1:10 pm in reply to: Is the hair dye used in salons really much different than the drugstore brands?Perry and Valerie answered this question in episode 326 of the beauty brains podcast
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fareloz
MemberFebruary 7, 2023 at 5:34 pm in reply to: Why molecular weight of cetearyl alcohol is 512.94 instead of ~250I see you’re into neural network these days. Try stable diffusion network (there are many tutorials on YouTube, search dream booth). It can generate photo of you in any amplua by textual description. Makes appearance even better than Glycerin ????
P.S. my avatar is generated by this NN.
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You can always check the products on the market. For example I googled several two-phase hair sprays and found that they all use combo of some volatile silicone (like Cyclomethicone) + cationic surfactant (like Cetrimonium Chloride).
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Not sure what’s wrong with your ingredients, but Azelaic acid is soluble in pure PG. Here you can see it: https://youtu.be/VssxLD7skQA
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fareloz
MemberMarch 6, 2023 at 8:14 am in reply to: Saponified oils would solve a lot of the Clean Beauty dilemmasAh, I see, another clean beauty ad.
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This is very helpful, thank you! I checked SDS on DeLonghi one and found only the pH, not concentration. Maybe I overlooked it:
But they also provide density, maybe I can calculate how much acid based on density.
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FDA is only valid for USA though.
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Under pH 2.5 Lactic acid is about 96% acid and 4% Sodium Lactate (if neutralize with NaOH). It can be in different amount:
1. 20% water, 76.8% Lactic acid, 3.2% Sodium Lactate
2. 40% water, 57.6% Lactic acid and 2.4% Sodium Lactate.
Both formulas have pH around 2.5.
What I am wondering is how much acid is usually used in descaler solutions.
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fareloz
MemberMarch 5, 2023 at 5:35 pm in reply to: Saponified oils would solve a lot of the Clean Beauty dilemmasI’m confused, what is revolutional in your post then? Liquid soap is a product of ages.
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fareloz
MemberMarch 1, 2023 at 9:18 am in reply to: What’s so much Lauric Acid doing in this body wash?Interesting! But why to encapsulate oils in a cleanser? Does it suppose to break down on skin during wash to nourish?
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https://patents.google.com/patent/EP0831768A1/en
In this patent then say you can dissolve up to 10% of Azelaic Acid in pure PG.
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Of course it can. The problem comes when you add water. If your formula is pure PG - then many substances (like Salicylic Acid, Azelaic Acid) have no issues with solubility.
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Sodium Hydroxide is close to EDTA, so it should be in small amount. But this INCI list is all questionable and we can’t make assumptions on ingredients position I guess
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fareloz
MemberFebruary 9, 2023 at 4:47 pm in reply to: Conversion of mix of different acids to conjugated base under certain pHI am eager to hear.the answer, this question bugs me the whole day and I can’t find easy answer on the Internet