The aromatherapy french school is not an sweet medecine but an phyto-allopathy therapy that has been abandoned by doctors and laboratories to benefit formulas ready-markable and who they are patentable "drugs" .... Indeed why sell raw materials and knowledge that could enable the people of the world to do without the marks and patents by simply using assets: plants and essential oils ..

Economically, it is better to enslave that educate : 

Les Médecins aux pieds nus