30 citations
,
  June 2015   in “South African journal of botany”    Traditional healers in Namibia use 70 different plants to treat AIDS-related diseases, and more research is needed to test these plants' effectiveness against HIV.  
     
           41 citations
,
  July 2015   in “Current Drug Discovery Technologies”    Some plants may help with hair growth and have fewer side effects than synthetic drugs, but more research is needed to confirm their effectiveness.  
     
           17 citations
,
  February 2015   in “Phytochemistry Reviews”    Southeast Asian herbs show promise for skin and hair care, but more research is needed to confirm their effectiveness in cosmetics.  
     
           9 citations
,
  January 1966   in “Economic botany”    Plant-based ingredients in hair care are being replaced by synthetic alternatives.  
     
           4 citations
,
  October 2016      Herbs like aloe vera and amla are effective and safe for treating hair loss.