The purpose of this research was to study the behaviors of the elderly in making decisions to purchase health products. The target audience was senior citizens aged 50 years and over who live in Nakhon Ratchasima Province, Thailand. Questionnaires were used to collect data, a total of 100 samples were analyzed with descriptive statistics, by %age, mean, Standard Deviation, and F-test statistics. Results showed that the behavior of the elderly in spending money on purchasing food, cosmetics, medicines / herbal and health products accounted for 38, 25, 20 and 17%, respectively. Their main reason for purchasing health products is because they want to be healthy. They purchase the products by themselves for their own health, 2 times per month, with the cost of each session of about 50-70 US dollars, at a nearby department store and a shop selling health products, and they often go for purchasing on weekends. Their purchase decisions were most influenced by television advertisements whereas the internet has only 5% influence on their decisions. The elderly decided to purchase the health products placing more importance on the vital components of a healthy product than its pricing and marketing strategies. The elderly with different education and income levels view the strategic importance of prices and costs in the acquisition of products for health in a different way as well.