DRBOB@VERDIENT.BIZ
Forum Replies Created
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You have a 20 percent oil phase: another way is by using a polymeric emulsifier.For example you could use Ultrez 10 by addition to water phase and after adding oil phase neutralize with a base such as triethanolamine.One percent of TEA will neutralize 1 of Ultrez and provide a smooth stable cream.
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Try DC FA 4103 silicone acrylates emulsion and add to water phase;may also help with coverage on skin.Add some ethanol to water phase to dry faster.
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My bet would be the Silsense with the silicone backbone for silky feel on skin.You can always try both and choose the best.
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Carbomer is best for suspension (even suspends air in water).Try soaking in hydro-alcoholic solution but an hour sounds long so do 15 minute intervals and test for slight softening before adding to sanitizer which I presume is alcohol based.
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yes you can use xanthan gum which works well with carbomer:Should not be sticky as we often use the combination.I am not a fan of veegum unless forced to use it.
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Arlamol LST (croda) can be post added for level usually 1%
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Use a small amount of xanthan gum ie 0.1% in water phase.
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I think you are exceeding solubility of GLA in your system{if unsure do a knockout first). If GLA is culprit try dissolving it first in propanediol before adding.
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Replace D5 with DC AMS C30 WAX.
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The Ph will decrease overnight as lactone ring reaches equilibrium with gluconic acid formation. Try readjusting Ph to 5-5.5 and use citric acid/sodium citrate buffer.You may also need a co-solvent PG but first stabilize Ph.
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Something else is going on Tea SAlicylate is soluble in water and glycols.Please provide complete formula for help.
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Try cola Moist a cationic polymer from Colonial at 1.5% active good slip
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Silicone polyol DC 193 (1-2%)
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CRL has been responsive and would and will continue to use.Bioscreen I don’t know.
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Encapsulation is the best way I know;you can try B-cyclodextrin in the lab as an example or pro-Liposomes/niosomes.Last resort go to Salvona Technologies as they will do custom encapsulation but if cost is an issue I would BCD first.
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The key is changes to the CMC as salt or NaCI lowers the former thus producing more micelles in the bulk of the solution:increased micelles means tighter packing and increased viscosity.You can prove this to yourself via measuring surface tension as a function ofSAA concentration using the ring method,SAA suppliers do this routinely:I did hundreds at GAF before they sold their SAA business,
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I don’t think less melanin has been proven and speculation suggests the latter would be minimally affected as there are seven pathways for melanin formation in skin with most important being melanocyte formation.
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got it.I had an experience once when a client(15 years ago) opened an unsealed (I think) tube of a cream for demonstration and out came about 5-10 cc of water before cream.Maybe think of publishing your work when you are finished.
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Also you don’t need the eo nonionics and why not use carbomer? PVP tends to flake.
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That is my guess.Why do you have it in there?
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Not likely in theory but easily tested via stability at 50C.
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What a joke?
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I presume you mean after tamper evident seal is broken (6-8 mo at high ?temp) and with that being the case do you run a control/s?
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Question 1 There is sufficient evidence to show antioxidants such VC help slow the aging process via inhibition of ROS so benefits outweigh all other negative considerations.
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A good place to start https://www.ulprospector.com/en/na/PersonalCare/Formulation/search?k=Masks&sug=1&st=1