Does cold air from the blow drier actually "lock hair into place", when finishing off a hairstyle?

Thank you so much! 
Also, does finishing with cold water in the shower actually make hair look better?


  • I've read that the cool setting seals the cuticle.  For me, after drying on warm, cooling my hair seems to keep it in place better, especially bangs.
  • Neither cold water nor cool air will seal the cuticle. Cuticle lifting is caused by a combination of physical damage and loss of the "glue" that holds the cuticle down. That can't be reversed by lower temperature. 
  • Thanks Randy. So the way my hair holds will not make a difference in terms of using hot air, or cold air?
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