Kireisha
Forum Replies Created
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Hi, i just found this case in my formulation. I used to adjust pH around 6-7, bc one of raw material(cooper peptide) is very sensitive to acidic condition. I tried to add NaOH solution to adjust the pH until that range, but overnight the pH decrease around 4-5 and the color changes to yellowish green.
Can you suggest me what material should i add to the bulk to maintain the pH still in 6-7 range?
Thank you.
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Oh okay. I’ll try to reformulation. Thank you for your suggestion 🙂
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Ya i want to make it dual phase. Water in bottom layer and oil in top layer. And it will be shake before use, so the layer mix together. I want it to separated again in 2 layers after shake. But in my trials, the layers became 3 layers, oil in top, water in bottom, and a white layer between.
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I want it to be separated as 2 layers not 3 layers.
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I want it to be separate. But shake before use. But every time i shaked it, it separated with 3 layers
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I use olive oil 3.5%, almond oil 1%, grapseed oil 0.3%, vit. E 0.2%
in water phase i add extracts 2%, BG 5%, glycerin 1.5%, sodium hyaluronate 0.05%
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Is it possible to use the buffering system like sodium citrate? Just to keep the pH above 5.5, then it won’t turn to yellowish green appearance ?
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I don’t use chelating agent. I use spectrastat PHL as preservative
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Yes, i adjust the pH before adding copper peptide. I really confuse why the pH still decrease.
I use the ferment fruit extract as active and caprylhydroxamic acid mixture as preservative the formula. Maybe it suspected that cause the pH decrease?
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Yes, i adjust the pH before adding copper peptide. I really confuse why the pH still decrease.
I use the ferment fruit extract as active and capryin the formula. Maybe it suspected that cause