

Andraous
Forum Replies Created
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Hii everyone,My name is Rabih and I work as a fomulation developer, R&D manager and QC manager in cosmetics and household. I have 15 years of experience in this field.
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Andraous
MemberJanuary 1, 2021 at 4:46 pm in reply to: Color change even with sodium phytate; any recs?suswang8 said:Hi, all.
Preparing for grenades/torpedos once I list my formula, but I am curious as to why the color has gone from a light/medium peachy beige (which I’m fine with) to almost medium tan in two weeks. I would have thought the sodium phytate would be enough to prevent this, but I thought wrong.. Thank you.
almond oil 6.00% behenyl alcohol 0.28% lecithin 1.38% brewed green tea 78.50% bakuchiol 1.10% ethanol 3.30% niacinamide 4.40% green tea extract 1.10% glycerin 2.20% preservative 1.10% sodium phytate 0.22% xanthan gum 0.44% What is the preservative you are using?
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ketchito said:@chemistry8303 Cetyl alcohol is a bit too high. Also, you can add some Carbopol to help stabilize/thicken your system.
Crbopol dont work at ph under 6
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You can replace the quat by GUAR HP
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Add NACL 0.2-1 ‰ and increase SLES to 10%
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Andraous
MemberJanuary 1, 2021 at 3:43 pm in reply to: pH options for (Face) cream with Niacinamide.You have to read the TDS of the preservative you will used. To. Make sure in which PH can be effective
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Andraous said:Viscosity of shampoo should be 4500-7000 cp. So you are on the safe margin. and this is normal some perfume increase the viscosity other decrease it. But you have to do stability test when you changing the perfume
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Viscosity of shampoo should be 4500-7000 cp. So you are on the safe margin. and this is normal some perfume increase the viscosity other decrease it. But you have to do stability test when you changing the perfume
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You can also add cethiol HE 1%
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Increase Dimethicone to 3.5%.add Guar Hp @ 0.3%. Replace plolyquat 7 by polyquat 10
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Andraous
MemberJanuary 1, 2021 at 3:26 pm in reply to: Cold process O/w thin lotion stability issueYou can also add polysorbate 20
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Andraous
MemberJanuary 1, 2021 at 3:25 pm in reply to: Cold process O/w thin lotion stability issueAdd carbomer with the water(increase the ph to get thickened with NAOH OR TEA) than add the other ingredients
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Potassium sorbate is enough for preservation system @ 1% but it affect the color
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You have to remove optiphen
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Potassium sorbate may change the color of formula to yellow
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chickenskin said:Anyone familiar with any parameters/interactions with formulating with lidocaine HCl or Lidocaine (base)?
Had a couple trials with lidocaine HCl and the cream developed minute grains. Typical non-ionic emulsifiers used with xanthan. pH~7.
Thank you
You have to dissolve the xanthan gum very welll
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Dehyquart is good for conditioner?