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Why do we actually need chelating agents?
Hi everyone,
I am working in personal care company. So my question is - why do we actually need chelating agents? What’s the job they do?
Is it to make water more softer or to avoid corosion for example in dishwashing machines or washing machines? Thank you.
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10 Replies
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In cosmetics, they help the preservation system work better.
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I think that they can also help emulsion stability when there is a high electrolytic concentration.
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The chelating agents added prior to the PC formulation bases will block the Fe before discoloring reactions would occur with sensitive Fragrance components.
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They improve the activity of preservatives like Perry said, plus they are essential in shampoos and body washes in retarding redeposition. Most of the world uses hard water and you never feel like the body wash rinses off right? Add some EDTA to your formula and you become part of the solution, not the problem. (Yes, pun was intended.)
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wow @chemicalmatt, so I am in a bit of a confusion here and that means I have to modify my formulation now. Its very stable and approved for all the features.
The issue as you said is redeposition where I have used certain silicone emulsions and which are to be deposited on the hair. Then I have a chelant called Dissolvine GL 38 and now I am having second thoughts since as you mentioned it will retard redeposition. -
If your formulation is “very stable and approved for all the features.” then there is no reason to change it.
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@johnb thank you.
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This is a lesson that we all have to re-learn every so often:
“If it ain’t broke, don’t fix it” -
Very well said Bob.
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