PhilGeis
Forum Replies Created
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I saw the article - 100% marketing. I know some of the folks offering information - good technical folks doing the best they can with what their companies produces and demands of them.
These are no doubt patented combinations. Niacinamide is not a preservative - think they add it in interest of “protecting the skin”. Polylysine is a cationic and BS as a preservative. Glyceryl caprylate is an ester - multifunctional booster but too susceptible to Gram neg esterases to function as primary. Decyl glycol is just that - a glycol - but less commonly used so may serve patent novelty.
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Growth? How will you support the claim?
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No experience with the stuff - don’t see it on CIR so wonder at safety assessment needed under MoCRa. Evonik comment ~ PEA and Phenooxyethyl
Phenoxy propanol in on Annex 5 for rinse off only.
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This reply was modified 1 year, 1 month ago by PhilGeis.
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This reply was modified 1 year, 1 month ago by
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Phenoxyethanol should not be greater than 1%, 0.5-0.8% is good.
What’s product pH?
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Please idenity the preservative actives and their specific %’s. Folks are not going to chase down the cats and dogs of commercial mixtures.
EDTA at ~0.1% accid
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You do have dilemma - addition to finshed product will certainly risk poor distribution and 100C is a bear for chemical and physical stability.
Do you consider this a water in oil or oil in water?
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Right - we’re all going to die and your efforts will save the planet.
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Why would it make a difference what sourced (triple pressed) stearic acid?
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This reply was modified 1 year, 1 month ago by PhilGeis.
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This reply was modified 1 year, 1 month ago by
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ok
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For the “complete list” you have it.
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The question would by why it is in the product - the “intent”. What cosmetic function would it serve and why this recognized drug active the choice vs nondrug actives?
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Leucidal is useless - esp. in this context - and parabens and benzoate (but for one supplier) are not legal preservatives for household products in US. How much ethanol?
pH 7.5 is an odd condition for a household cleaner. Why is that your choice?
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Think BAK in such products is a ghost ingredient, a charade.
pH (via HCl) is typically <3, hydrolyzes protein and biofilm, dissolves metal hydroxides and is low enough to kill bugs/disinfect. They can;t claim to be a “disinfectant” since HCl is not a registered disinfectant active produced at a EPA registered site. Tossing in BAK (a registered disinfectant active) let’s them claim to be a “disinfectant” but does little to nothing for the product. Quats are most active pH 7+.
They can;t use bleach - at that pH, you’d gave chlorine gas.
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FDA does not approve cosmetic ingredients.
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Please don’t believe all the marketing BS, esp. from a repacker. Phenoxy/EHG is not that good vs fungi and not great vs Gram + bacteria.
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The list hasn’t been touched for decades but for alerts from activists - Parabens - and the contact derm folks - MIT. There is and has been virtually no use of OPP to for anyone to notice. Even the activists are not so stupid as to sensationalize something no one uses and the derm folks deal with reality.
The stuff is not only classified as a carcinogen, it is an irritant.
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Mike is spot on. You shouldn’t expect to understand a disease process based on folks offering a few sentences in the forum.
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You should post as a primary question.
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Hot filled tubes are certainly at very limited risk.
Why not make/package product and let your freinds screw around with it, encourage them to use and often in any way they wish - get it back and check for bugs.
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Good grief - forget Natacide and other mystery preservatives. Phenoxy is prob not great - flashing off at 100C, partitoning is not favorable with w-in-o and Gram negs are prob not your biggest risk. Please talk about the chemical not the commericial name.
Challenge - fail not because it’s unpreserved but because the challenge droplets with bacteria/fungi never effectively merge with water in your water-in-oil emulsions. The same phenomenon governs contamination in use. Unlesss exposed to water in use - your risk is fungal contamination under high humidity so phenoxy is not that useful. If direct exposure to water - preservative in water droplets in w-in-o prob won’t see the bugs and any preservatibe will not be effectively available. Bugs from skin don’t come woth enough water to grow.
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This reply was modified 1 year, 1 month ago by PhilGeis.
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This reply was modified 1 year, 1 month ago by
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Not sure you need a preservative. If really 100C, you’ll certainly eliminate process contamination. Is it hot fill? and what is package? Water in oil - are intrinsically less susceptible. Challenge testing is not suitable - it’ll prob fail preservative or no. You wonder where the glycerol is - if in water phase, it’ll have an effect. Where does it come in process?
Right - you’ll never get preservative in post process.
The real test would be in use.
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I’ve used it in disinfectants - consumers complained about skin irriation. Never used it as a cosmetic preservative.
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Absolutely NOT. Do not use phenyl phenol.
https://oehha.ca.gov/proposition-65/crnr/o-phenylphenol-listed-known-state-california-cause-cancer