I would not use the Laci Super Dieters Tea...it contains senna, which is simply an herbal laxative. Taking laxatives too often could cause your body to become dependent on them...and I don't think anyone wants an unecessary visit to their physician.
Some herbal teas are healthy...and others are not. Siberian Ginseng, Guarana, senna, and other things are simply either herbal "speed" or herbal laxatives...and should be used with caution.
For weight loss-simple low calorie eating and exercise is the key. Regular herbal teas-green tea, black tea, chamomile, etc. are wonderful and healthy because of the natural antioxidants in them-but they do nothing to promote weight loss.
Aphil