What is chelate or chelate shampoo

[Shell4624]

At first I was thinking clarifying... which I understand is a shampoo that strips the hair of build up, but I do not understand what Chelate is and when/why you'd do this. Can you please fill me in? Thanks.

 

[Shell4624]

anyone?????

 

[GeorginaSparks]

the search function is your friend

http://www.longhaircareforum.com/showthread.php?t=240257&highlight=chelate