Well if you are, then I suggest you really take the time to look online at some of the various sites available to people such as yourself. First and foremost, congrats to you for finally making the decision to lose weight and become healthier. Nowadays people becoming obese has become an epidemic. The really sad thing is that a lot of these people simply stay obese or overweight because they simply DO not know how to lose weight or how to have a happier and healthier lifestyle. Thankfully with all the sites online, you won't only find a product that will work for you, but that has worked for others as well.
One of the things you might consider looking for with ANY product is a review. These reviews are content that people write about while observing the specified product. So if we are talking about weight loss pills, you might want to go to Google and do a search for a few of the products you find online. In the results you will find people talking about that product and they will give you positives, negatives, info about the pills, any side effects, testimonials, etc. I like this.
I do this with anything I buy online have it be an iPod or a health product. It's almost like a "try before you buy" tactic - but you're not actually trying the product, someone else already has. You just reap the benefits from the cycle of knowledge you get out of the review to help you make a better decision. It's also important that you check out the ingredients in the product you are checking out. Thankfully, a lot of these "pills" are much safer than they were a few years back when they had pills available.
But I still find it precautionary to take a look at the ingredients to make sure it's not something you would possibly be allergic to. It's also a good idea to talk to your doctor before taking any kind of weight loss pills. Again, just a precautionary measure to look at. The way most of these pills work are defined by two separate equations. First off they will make you less hungry - appetite suppressant. There are herbs you can add to your diet as supplements, teas (especially green tea), and foods that will help your weight loss program go smoothly with these pills.
There are various herbs which contain sympathomimetics and xanthine compounds which will increase the body's basal metabolic rate to increase the burning of calories and fat, act as mild stimulants, and suppress the appetite! The metabolic rating process is one of the most important aspects to ANYONE losing weight or staying in shape. If you are sedentary (staying still, being a cough potato, having a desk job) chances are you metabolism won't be "moving" this is where a lot of the fat on your body comes into play.
On the other hand, if your metabolism is moving - you will burn calories and fat. That is the whole point of putting specific herbs inside these pills. Also, they might make you have more energy as well, which will also speed up your metabolism and make you want to be more active. When it comes to losing weight, sitting around is one of the worst things to do besides cramming your body full of bad foods.
So if you see herbs like ginger, ginkgo biloba, green tea, kelp, chickweed, cardamom, or any other "herbs" this is completely normal and it's actually something you WANT to have in your weight loss pills so I would actually recommend you make sure the product you are taking does have these elemental factors!