As in have they ever worked for you or someone you’ve known personally?
Answer on Are herbal weight loss teas effective to lose weight?
No herbal weight loss teas do not work. A lot of the ingredients include products that have not been verified by the FDA (Food and Drug Administration). I tried some and it simply regulated my digestive system but did not really help lose weight. I am trying other stuff now, eating to my blood type and doing an exercise routine, working way better.