DRBOB@VERDIENT.BIZ
Forum Replies Created
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Can you get Ultrez 10 and xanthan gum/If so take out stearic acid and use 1/0.3 ratio of U-10/XG neutralizing using 1;1wt/wt ratio of TEA to Ultrez to Ph 5,5-6 to get lotion consistency you want.You can then use the formula as is including preservative system.Heat both water and oil phases to 70-75C and add oil to water.
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Just for information: we have used 0.75 and 1% benzyl alcohol (passed USP 51) at Ph up to 10 in the presence of high levels of Ca CO3.
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- The stochiometry for TEA STEARATE is way off and you need 3.25 percent TEA to use TS as a emulsifier with 6.5 stearic.Your preservative system will not work using TS suggest new formula using polymeric emulsifier as a start.Also ending up with about 10 percent soap as TS is way too high for skin.
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OK Thanks
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Why not use another cationic polymer Assume you are using cationic guar HPTG??Cellulosic polyquaternium 10 ??
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Thanks. Have you tried Glucamate DOE 120? What viscosity are you looking for?
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procetyl aws at 1.5:! ratio with fragrance may work.
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What is your LOI and PH?
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12% Polysorbate 20 is way too much for solubilizing Limonene which is why you cannot thicken the formula.Drop th Limonene to 1% and dissolve it in polysorbate 80 also at 1%.Use HEC to thicken by adding to water first; followed by alcohol;polysorbate 80/Limonene mix; when clear and preservative.
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Jaguar Hp 60 forms stable gels for up to 3 years.Make sure it is hydrated in water first before other additions.
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Germaben 2 will not fail at 1 percent.
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You need to know the specific gravity/density of the liquid to convert volume in ounces to grams and use above math.
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PVA should be at least 8-10% and increase ETOH to 20-25% for a drying time under ten minutes.If adhesion problems persist remove or lower the polysorbate as surfactants promote de-adhesion.
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To maintain efficacy of SA, keep Ph at 3-4:if you need more viscosity add a cellulose derivative such as HEC HPMC. Either and particularly HPMC will give you good slip.
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Use sodium acetate.
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I am not aware of any differences in preservation:main difference is solubility in cold water of the sodium salt (Ph is about 9.5) so has to be neutralized during process at some point.
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what viscosity are you looking for? Alkyl sofane-10%-do you mean sulfonate or sulfate?
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A body lotion is usually not marketed for facial application but that doesn’t mean it can’t be, so if you promote it as such I would do an in-vitro Het Cam test - keep in mind this could be overkill unless you specifically claim “safe for use around the eyes”. Net/net don’t think it is necessary.
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Belassi Nice going could be a nice niche product and very useful!
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Doreen81 You are right as it seems like this is the best way to handle these types of preservatives:also they remain very stable and functional with time.
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why do you want to do this?
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Regardless of which emulsifier you use ,numerous large scale i.e. 400 panelists in blind tests consistently picked lotion/cream with Dimethicone over same product without for penetration/rub in.Tests were conducted on a global basis(at least Asia/Pacific and Europe and particularly UK)
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You can add the SB at the end of the process after you adjust PH with CA.
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It is a matter of chemistry CA first makes solution acid in which sodium benzoate as benzoic acid is insoluble.