text: Yo, check it out, in recent years,
  We've seen some models appear,
  For growing hair follicles in vitro, my dear,
  It's a breakthrough that's crystal clear.
  
  Outer root sheath keratinocytes, let's dive,
  They've been studied, ain't no jive,
  In explant cultures, they strive,
  On bovine eye lens capsules, they thrive.
  
  Collagen substrata, 3T3 cell layers,
  Dermal equivalents, yo, no one compares,
  They yield a multilayered stratified affair,
  With keratinocytic traits, they declare.
  
  But hold up, there's more to this tale,
  ORS KC cultures, they prevail,
  From single cell suspensions, they set sail,
  With dermal cells, they combine and unveil.
  
  Human hair matrix cells, they got game,
  Isolated from follicles, they aim to claim,
  3T3 or human fibroblast, their frame,
  Multilayered stratified KC, they'll proclaim.
  
  But yo, wait a minute, there's a gap,
  Cultivating bulge cells, it's a mishap,
  Follicular stem cells, just a preliminary rap,
  More research needed, it's a fact.
  
  So in conclusion, we got these models in our grip,
  ORS KC and hair matrix cells, they flip,
  They teach us about the hair cycle's trip,
  Factors and interactions, they unzip.
  
  But we ain't done, there's more to explore,
  Comparative studies, we gotta score,
  ORS KC, bulge cells, matrix cells galore,
  Unveiling the distinct character, we'll adore.