I hear alot of talk about how some people can't tolerate alot of protein in their hair, but some people love it. Can someone explain how protein affects the hair. How do you know when you need protein and how do you know you are using too much?

Are there different types of proteins?

First Big Chop 5/27/09
2nd Big Chop 9/11/2009
Texture: 4a/4b
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