Slimming pens become a craze: 1.3 million orders generate R$2.3 billion in 6 months

Slimming pens require changing habits and monitoring The number of online orders for medications associated with GLP-1, the famous "slimming pens" used to treat diabetes and overweight, grew 149.3% in the first half of 2026 compared to the same period in 2025. The increase represents a 2.5-fold jump. There were 1,364,354 requests between January and June, compared to 547,249 in the first six months of last year. The data comes from a survey by Serasa Experian and the total value of these requests reached R$2.348 billion. The study includes injectable medications and other pharmaceutical forms of the active ingredient. The growth reinforces the expansion of this market in the digital environment, but also draws attention to the need to protect transactions. In 2026, 3,966 fraud attempts were identified, involving R$7.86 million. Number of orders for slimming pens in the 1st half of 2026. Serasa Experian “The November peak coincided with Black Friday, a period marked by the intensification of promotional campaigns in e-commerce, and also with the anticipation of the end of year parties and summer holidays, which take place between December and January”, analyzes Rodrigo Sanchez, director of authentication and fraud prevention at Serasa. Slimming pens could create a new type of yo-yo diet Adobe Stock Millennials and Generation Together, the two generations accounted for 63.1% of all orders during the period. In the annual comparison, Baby Boomers showed the fastest growth in requests, with an increase of 273.7% compared to the first half of 2025, reaching 164,687 requests. Geração Alpha, in turn, was associated with more than 20,500 orders and a turnover of R$36 million in the first half of the year. This section indicates orders linked to CPFs classified in this generation and does not necessarily mean that children or teenagers made the purchases directly. Like millennials, they have generally chosen to delay marriage - but for different reasons Getty Images In an analysis by age group, the smallest variation occurred among people up to 25 years old, still significant, with an increase of 84.14%. With the growth of the age group, the variation in requests also grows, reaching an increase of almost 300% in the population aged 71 to 90, compared to the first half of 2025. Among Brazilians over 90 years old, the oldest age group analyzed, the increase was also relevant, 134.45%. Check out the graph and table below with detailed data by generation and age group: Purchase of weight loss pens by generation Care for consumers: Make purchases only on websites, applications and official establishments, checking the email address before entering personal or payment details; Avoid links received via social networks, advertisements or messaging applications, especially when they lead to unknown pages; Be wary of offers with prices much lower than those practiced in the market; Buy medications associated with GLP-1 only with a medical prescription, with the prescription being retained by the pharmacy or drug store; Use these medications only according to approved indications and under the supervision of a qualified professional; Never share passwords, authentication codes or complete card data outside official environments; Be wary of pages that pretend to be public bodies or well-known companies. In May 2025, Anvisa warned about false advertisements that improperly used the Agency's name to offer Mounjaro.