

billichemist
Forum Replies Created
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billichemist
MemberApril 8, 2015 at 12:27 am in reply to: Choosing surfactant blends for a low pH Glycolic face washhey guys! I also have been having a couple of issues with a similar formula… a Mixed fruit acids/lactic cleansing milk… my formula keeps separating and does not pass accelerated stability… is it because of my emulsion system? the more acid i put in, the less stable it is!!
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So i should remove DEA completely and thicken with salt?
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aqua - 48%
glycerine - 5%ALS - 20%Adjust to pH 4.5Cocoamide DEA - 15%Phenoxyethanol - 0.55Fragrance - 0.65%alcoholic extracts - q.s.Cocoamidopropyl betaine - 11% -
this extra information might help…
it is a ALS, Cocoamindopropyl Betaine and Cocoamide DEA system. its not my formula, i have merely been using this as a template/base. is this template even worth working off? -
hi guys, I tried adding 1:1 polysorbate 20 premixed with the EO blend, but it didn’t work! Also, reducing the pH from 7.5 to ~6.5 also drastically reduced the viscosity!
should i be using more polysorbate? or a combination of polysorbate 20 and Cremophor? -
Hi @perry and @davidW thank you for your responses. I am trying to add in 0.65% of an EO blend that is high in citrus oils…
I also have an alcoholic extract in the formula, albeit at a low percentage.. is alcohol known to be incompatible with such surfactant formulas? -
billichemist
MemberMarch 5, 2015 at 10:06 pm in reply to: Emulsion stabilizers that don’t worsen skin feel or absorption@zink thanks for the update!
possibly a dumb question… would you put EOs into a benzoyl peroxide cream/gel?? will it get degraded but the BPO or vice versa?? -
billichemist
MemberMarch 4, 2015 at 12:31 am in reply to: Emulsion stabilizers that don’t worsen skin feel or absorptionmagnesium aluminum silicate is good for Benzoyl peroxide formulas! any updates on your project?
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@bill_Toge thank you for that! Now i Just have to get my supplier to give me all that info….. Working on a resource now… will update soon
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@belassi thanks for that! Yeah when i mean Decyl Glucoside, i actually meant CAPB! haha..
@bobzchemist nah I am located in australia!