What are the pros & cons of taking lychee extract & probiotic for weight loss?

Frauds. I am sure you have lived long enough to know when you are being fleeced. Right? This product is designed to separate the gullible from their money. It will not in any way lead to real or lasting weight loss. Period. End of discussion. No if's ands or buts. Do not put it in your mouth.
No short answer. The pro's are more on the side of the person you are buying it from and the con is that unless you decrease your calories and or greatly increase your activity it won't work. And sometimes the probiotic increases the appetite.