How Ammonia Opens the Hair Cuticle During Color
Ammonia raises the hair's pH to swell and lift the cuticle, allowing oxidative dye molecules to enter the cortex and ...
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All Texture & Treatments articles from Hair Care Made Clear.
Ammonia raises the hair's pH to swell and lift the cuticle, allowing oxidative dye molecules to enter the cortex and ...
Read itHair porosity determines how readily the cuticle layer opens to accept oxidative or direct dye molecules, shaping bot...
Read itOxidative hair dye works through a two-stage chemical reaction inside the cortex, permanently altering fiber color by...
Read itHair bleaching oxidizes melanin and degrades the keratin protein network inside the cortex, permanently altering the ...
Read itA perm chemically breaks and reforms disulfide bonds inside the cortex to lock hair into a new shape — here is how th...
Read itSemi-permanent and permanent hair color use different chemistry to deposit pigment, which determines how deeply color...
Read itA keratin treatment coats hair with protein and uses heat to temporarily reshape its bonds, smoothing the cuticle for a limited period.
Read articleA chemical relaxer breaks hair's disulfide bonds and reforms them in a straighter configuration, a permanent structural change unlike heat styling.
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