Starting in 1911, René Baudry, pharmacist, specialized in the production of homeopathic medicines by founding a homeopathic pharmacy, the Pharmacie Générale Homéopathique Française [French General Homeopathic Pharmacy] at 68 Boulevard Malesherbes, in the 8th Arrondissement, in consultation with Dr Vannier, a childhood friend living in Paris at that time.

He left Paris in 1922 after having sold his business, and went to Annonay in Ardèche.

In 1926, Dr. Vannier created the Laboratoires Homéopathiques de France [Homeopathic Laboratories of France] in Paris. In 1930, René Baudry joined the group of homeopathic physicians in Lyon and founded the Laboratoire Central Homéopathique Rhodanien [Rhodanian Central Homeopathic Laboratory], at 38 rue Thomassin in Lyon.

The Parisian physicians of the Ecole Moderne d'Homéopathie [Modern School of Homeopathy] invited him to return to Paris to found a national laboratory for the production of homeopathic medicines. He agreed, provided he could keep the company in Lyon, and then sought out colleagues to help start this new company. Henri Boiron and Jean Boiron were looking for work. They had just earned their Diplomas in Pharmacy in addition to Doctorates in Science. Thanks to Dr. Mondain, they met René Baudry, who hired them.

In June 1932, Jean and Henri Boiron founded the Laboratoire Central Homéopathique de France [Central Homeopathic Lab