If some people think that the slimming of that technology is a scam, it may be because they think that the technology has not been fully scientifically researched and verified, or the marketing team of the technology has used immoral or fraudulent means to sell products or services.
However, if the technology has sufficient scientific research support and its marketing team sells products or services in an honest and transparent way, then the slimming of that technology may not be a scam.
Whether it is a scam or not, if you have any questions about buying any weight loss products or services, you'd better consult a professional doctor or other health professionals. In addition, maintaining a healthy lifestyle, including a balanced diet and moderate exercise, is the key to maintaining a healthy weight.