While they were signing the contract, Maria was in a parlor with other girls, showcasing her essential oils.

Maria didn’t bring just one bottle of essential oil; she had a wooden vanity case containing a dozen small bottles, each filled with a different type of oil from her collection. Each bottle was about 30 milliliters, enough to last a month with sparing use or up to two weeks with frequent use.

Maria explained to everyone that these were all the essential oils she had in stock. Due to their short shelf life once opened, she couldn’t bring all of them out for sampling. Instead, she showed the effects of a...