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EDTA
hi all chemists in this amazing forum
how r you?just little help required
is it always necessary to add EDTA to stable ph and formula of lotions creams and water based serums toner etc?
i am not a chemist but home based formulator creating and making lotions and serums to try out for myself.
would be very grateful for your recommendations
Regards
sara -
10 Replies
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For preservation - yes.
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PhilGeis said:For preservation - yes.
no preservative i am adding in serum liquid germall plus
and for lotion i am adding phenonip -
For preservation (booster) - WITH a preservative. Those are good preservative systems and EDTA enhances.
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PhilGeis said:For preservation (booster) - WITH a preservative. Those are good preservative systems and EDTA enhances.
ok dear thank you so much for guidance ????
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EDTA is a chelator….so it does not have to be exactly EDTA, there are a number of options that do about the same thing.
A more natural approach to chelating would be things like GLDA or Sodium phytate.
But yes….chelates are very important, on multiple levels.
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Graillotion said:EDTA is a chelator….so it does not have to be exactly EDTA, there are a number of options that do about the same thing.
A more natural approach to chelating would be things like GLDA or Sodium phytate.
But yes….chelates are very important, on multiple levels.
thank you so much for helping me ,????????
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Sometimes GLDA is hard to find…so I’ll include a link:
TSGD (Tetrasodium Glutamate Diacetate)-STA-TSGD-01 (makingcosmetics.com)
I like that one, because it comes as a liquid, and is one less powder I have to wonder if it went into solution. (Since this one is only about 50% active ingredient…I would not hug the bottom end of use rate….but around .2% at least.
If you are only making for yourself…and using within a very short amount of time….you can get by without chelators. But if you ever aspire to sell anything, might as well get used to formulating with them.
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Chelators are not equal. Like preservatives, subordinating a functional ingredient to serve a secondary claim is not without risk. All you have to judge is a PET test too blunt to dissect that risk.
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Graillotion said:Sometimes GLDA is hard to find…so I’ll include a link:
TSGD (Tetrasodium Glutamate Diacetate)-STA-TSGD-01 (makingcosmetics.com)
I like that one, because it comes as a liquid, and is one less powder I have to wonder if it went into solution. (Since this one is only about 50% active ingredient…I would not hug the bottom end of use rate….but around .2% at least.
If you are only making for yourself…and using within a very short amount of time….you can get by without chelators. But if you ever aspire to sell anything, might as well get used to formulating with them.
thank you so much dear for detailed guideline ????????
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PhilGeis said:Chelators are not equal. Like preservatives, subordinating a functional ingredient to serve a secondary claim is not without risk. All you have to judge is a PET test too blunt to dissect that risk.
ok dear got it. will share my experience soon with you all after testing it for sometime
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