46 citations
,
  August 2003   in “The journal of investigative dermatology/Journal of investigative dermatology”    Phosphatidic acid may help hair grow by affecting cell growth pathways.  
        Procyanidins and phosphatidic acids help promote hair growth.  
     
           38 citations
,
  June 2018   in “Plant & cell physiology/Plant and cell physiology”    Changing the amount of PLC5 in Arabidopsis affects root growth and drought resistance, with less PLC5 slowing root growth and more PLC5 improving drought tolerance but hindering root hair growth.  
     
           7 citations
,
  June 2020   in “Experimental dermatology”    Researchers found that certain lipids, especially vitamin D3, are lower in prematurely grey hair than in pigmented hair.  
     
           5 citations
,
  February 2014   in “Journal of chemical ecology”    Eastern Red Bat hair contains various glycerophospholipids, mainly phosphatidylcholine.