Influences Affecting Consumer Decision-Making Behaviour of Boom Collagen Supplement Product in Chiang Mai Province

The objectives of this research were (1) to study personal influence on purchasing decision behaviour Boom collagen dietary supplement products consumers in Chiang Mai province, Thailand, and (2) the marketing mix affecting Thailand. This is quantitative research. sample group used was 400 province using convenient random sampling. Questionnaires as a tool collect information. statistics analysis mean, standard deviation, difference, mean value, one way variance Pearson's simple correlation coefficient statistic. results found that mix: product, price, distribution channel promotion. opinion level at high all aspects. hypothesis testing influences different gender, age occupation. buy not term education, 2) overall each aspect has decision-making frequency purchases had no relationship.