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how to fix drifting pH
Hello! I am a DIY formulator. I have created serums and toners, which work great, but I have noticed pH drifting regardless of the formulation/ingredients. I have tried preserving the formulas with Geogard ECT and the combination of Lactobacillus Ferment (Leucidal liquid SM Max) with Lactobacillus (and) Cocos Nucifera (Coconut) Fruit Extract (AMTicide Coconut). The pH drifts slowly over several weeks. I read somewhere that adding L-Arginine would help to stabilize the pH, and I tried that (I’m not sure if I’m doing it correctly), but the pH drift is still occurring. Could someone please share with me how to prevent this from occurring? Thank you very much!
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2 Replies
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You have not listed any credible preservatives. You may need to hit rewind….and consider better preservatives.
Preservative Reviews - (makingskincare.com)
Things that maintain pH are called buffers. Things like Arginine will alter pH to a desired point, but generally will not continue to hold them in place like a buffer.
I would consider starting with better preservatives, and seeing if the pH drift continues. I assume you are using a meter to take these readings?
When discussing a topic like this…we need more information. Things like is urea in the product or gluconolactone…etc…etc… It is very hard to address a concern…when lots of guessing is involved. (You did not even tell us which way the pH is drifting. 😉 )
Good Luck.
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This reply was modified 1 week, 4 days ago by Graillotion.
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This reply was modified 1 week, 4 days ago by
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If there is a drift in the pH, the possible reasons could
* Check for the TDS and the pH of the water.
* Check for good Chelating agents and preservatives.
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