Does wu-yi weight loss tea really help? or is it a scam.... ?

i started drinking ordinary green tea now... like 10 cups a day.. and i started losing fianlly a little bit of weight ...but also very slow because i am in pre menopause... i work out 1 -2 hr a day 5 times a week... and i am on a very low calorie diet too.... my thyroids are fine but i still struggle for each lbs to loose... so i bought wu-yi tea ... did any woman in her 50's tried it .... and did it helped? ..... or are there any woman out there in their pre menopause losing weight and pls tell me how!!!!!...im desperate by now!!