The aim of this research is to study the market environment of dietary supplements and the consumer behavior of those who use weight loss supplements. We will identify ways to promote and create awareness of weight loss supplement V Plus By V Nat with tools used to collect information such as an online questionnaire and paper (paper-based survey) for those without or not using the internet ; a total of 400 people will be evaluated. The results are as follows ; consumers who use the most weight loss supplements will get information on various weight loss supplement brands by using social media. The most commonly known weight loss supplements found on these platforms are KAYBEE and AMWAY. The average purchase behavior of consumers is to buy weight loss supplements 1 to 2 times per month. The average order purchase price of weight loss supplements ranges from 401 Baht to 600 Baht with purchases more popularly made through online store. The criteria for consumer choice of a specific brand is based on the quality of the product and efficacy testimonials. Marketing mix factors that influence purchase decisions are ; qualified products require a variety of ordering channels. Price must be appropriate for the amount of packaging. Advertising through the media is easy to understand and interesting. Researchers have used the results to determine how to promote and create awareness of weight loss supplements by advertising via Facebook, so that consumers can get more information about the product and to build consumer confidence in the product. It has led to the development of original channels and increase in distribution channels to a variety of others such as Facebook, LAZADA, Instagram, Shopee to meet the needs of more consumers, and the implementation of booths at various venues on weight loss supplements to make the brands more recognizable. The conclusion is that consumers are using internet and social Media platforms to inquiring about and order weight loss supplements at an increasing rate.