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Best eczema safe 100% water soluable preservative ecocert
Looking for recommendations for eczema safe preservative for a 100% water based formulation. Preferably ecocert or at least non formaldehyde releasing. I tried PE 9010, it was a disaster.
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9 Replies
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Considering this:
NeoDefend
(GeoGard Ultra, MicroGuard)
Gluconolactone (and) Sodium Benzoate-
It depends on what else is in your formula but that might work if you keep the pH at 5.0 or lower.
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Yup I try to keep all of my skin and hair products under 5. When I tested the pH they all reanged from just above 4 to 4.6. I’m not sure about other skin and hair types but the closer to 4 the shiner my hair and clearer my skin is.
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Pretty weak system that would require protective packaging and high level of manufacturing hygiene attention. Has a real Gram neg weakness Gluconolactone breaks down to gluconic acid - think I’d use EDTA.
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Yes, I’ve switched to an airless pump to guard against that. I use PE 9010 for my emulsions but as you can imagine it was a huge failure in a completely water based formula. I am also using 60% vegetable glycerin in these products (its not as sticky as you would think), so I am hoping with the packaging, small amount and proper sterilizing, it’ll be safe. I am also going to disclaim that it should be discarded within 90 days of opening even though I don’t yet have the firm numbers in terms of stability. Its mostly for insurance purposes and for overall safety for customers who may not be taking great care of products.
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What do you mean by ”PE 9010, it was a disaster. ”?<div>
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Was it not dissolving in your product? Destabilizing your product or irritating the skin?
Is the product completely water based or emulsion?( Emulsion has oil too.)
PE 9010 is water soluble. Just heat the product and PE 9010 a little bit before mixing, premix it with glycerin or propylene glycol, use high shear or mix for a bit longer to dissolve it properly.
airless pump is very expensive. That is why no one uses it. You can improve your formula for protection. If no formaldehyde or CMI MI, then with your sodium benzoate, some phenoxy ethanol or Phenethyl alcohol+ may be some benzyl alcohol is very important for bacteria. You can also use glycols.
60% glycerin?
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It didn’t mix so it floated and I didn’t think to heat since it has sodium hyaluronate that needs to be in the cold to mix quicker. That’s why a 100% water soluable preservative is just easier.
Yeah I put a lot of glycerin, when mixed with hyaluronic, it is not sticky. You have to apply when skin is moist and use a pea size amount and it will mimic baby skin perfectly. A lot of people don’t realize healthy baby skin is slightly sticky due to the mix of naturally occuring NMF like squalane, glycerin, urea, etc….dry or unhealthy skin doesn’t have any tackiness to it at all. Seaweed also helps because its film forming but smells so bad and can settle that its hard to market. One of the best ingredients you can use but people want pretty over effective. But it hasn’t been extensively studied for eczema so I m not currently using it.
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The airless pumps are so expensive so I bought cheap ones on amazon. They have a decent rating but not as good as the ones that are high cost. They are double the cost of my jars but with the eco cert preservative, I have to use an airless pump so people don’t die lol.
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phenoxy is soluble in water to ~2%
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