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Are their different ways to solve different breakage problems? For example breakage from two textures? breakage from manipulation? breakage from overconditioning? breakage from too much protein? If so, how do you tell what kind of breakage it is so that you can correctly solve it? Any ideas?
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I would say to solve breakage from two textures, you will want to attempt to soften the new growth so that the relaxed hair and new growth doesn't fight against each other.
Breakage from overcondititiong, I would condition less often, or your conditioner could be the culprit. Consider changing conditioners.
Too much protein, you can counter with a moisturizing conditioner and/or using protein conditioner less frequently or change protein conditioners.
For me, I am able to tell if I've used protein too much by the texture of my hair. It will feel crispy, not soft and doesn't blow in the wind and fall back into place. If overconditioning is a problem, I noticed that my hair will fall limp, no breakage for me. If it's due to the relaxer being over lapped, my hair strands lose will be rather long. If breakage is due to not proper moisturizing my strands, the breakage will be short strands...