I actually have a bit of a theory about cones and porosity. My idea is that hair with cuticles that tend to be open (porous hair) is more likely to have cones get jammed under the cuticle and end up tangly/easy to damage/not shiny while using cones... whereas hair with a cuticle that tends to be closed (non-porous hair) is more likely to have cones wrap on top of the cuticle and keep hair shiny and easy to detangle.
Not sure how far my theory flies though
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