Carver worked for years to create a company to market his products. The most important was the Carver Penol Company, which sold a mixture of creosote and peanuts as a patent medicine for respiratory diseases such as tuberculosis. Sales were lackluster and the product was ineffective according to the Food and Drug Administration. Other ventures were The Carver Products Company and the Carvoline Company. Carvoline Antiseptic Hair Dressing was a mix of peanut oil and lanolin. Carvoline Rubbing Oil was a peanut oil for massages.