I'm getting ready to bleach my hair and have seen online people recommending to use coconut oil before the process. I have already done a coconut oil mask a few days before in preparation, but some people recommend to even leave it in for the bleaching process. Does this really protect the hair during the process? And could it react with or even stop the bleach and developer from working to its fullest potential?
Thank you!
Comments
This is why "gradual" hair colours or henna dyed hair can't be later redyed with conventional permanent dyes without compromising the structural integrity, they contain metallic salts.
And why you should chelate your hair before permanent colour if you live in a municipality with hard water. (Chelating agents remove metal ions by binding to them)
I believe coconut oil is a mild chelant for copper ions? This might be why it protects the hair from damage when bleaching. I'll try to find a source on chelating agents in coconut oil.
By the way, there is a chellant that's really good at selectively binding to copper (the main culprit in hair damage when colouring) rather than iron. Look for N-ethylenediamine disuccinic acid (EDDS), I think that will work better than coconut oil.
https://patents.google.com/patent/WO2015164138A1/en
It's featured in the Pantene Damage Detox line of shampoos.