[Adamnfineman]

Happy Birthday!! Thank you for this great website!
May you have long days and pleasant nights this upcoming year. 

[Adamnfineman]

@PhilGeis Ah okay, thank you for the information and source.

[Adamnfineman]

Rafacasti said:

Also, “Disodium EDTA” is for acidic pH (- 7.0) and “Tetrasodium EDTA” is for alkaline pH (+ 7.0).

@Rafacasti
What would happen if you used tetrasodium EDTA in products with an acidic pH?

I’m asking because we ran out of disodium EDTA for a while and we ended up using tetrasodium for a good amount of batches until we got some more delivered. All the products we formulated at that time were acidic. I was told they were more or less interchangeable. 

[Adamnfineman]

Zahra said:

Because it is good when I apply it to unpainted hair, but it gives a little softness when I apply it to damaged hair.

What do you mean when you say unpainted hair?