A weight loss patch is a square-shaped adhesive bandage that you place directly on your skin; the patch is purported to release chemicals and herbs through your dermal layers directly into your bloodstream, which then 'burns fat fast' without the extra work of dieting or exercise. Mimicking effective medical patches such as the ones used to control motion sickness or to help quit smoking, weight loss patches do nothing to help you lose weight.
There are two types of weight loss patch; the most common is the heavily marketed fraudulent type. Manufacturers report that the effective ingredients in these patches range from sea kelp to green tea extract to 'herbal supplements.' Many contain caffeine, ephedra, or derivatives of these substances. Some patches report weight loss of 45 pounds in 30 days; not only is this unbelievable, but it is also an unhealthy amount of weight to lose in such a short period of time. Experts say healthy weight loss amounts to one to two pounds per week; this is only achieved by decreasing your intake of calories and increasing your activity level, thus using more calories than you take in and forcing your body to consume its own fat stores for energy.
There is also a clinical kind prescribed by medical practitioners. Effective weight loss patches do exist; these patches must be prescribed by a doctor after undergoing a thorough evaluation to verify that your weight problem merits such medicine. Even doctor prescribed patches are not for everyone; patients are required to meet certain weight conditions such as a clinical classification of being overweight or obese with a Body Mass Index (a body fat ratio calculated on your weight and height) of over 30.
These 'transdermal' patches, as they are described, have not been proven safe or effective by the Food and Drug Administration. In fact, the FTC has seized millions of these so-called weight loss aids from promoters and has even brought lawsuits against certain patch manufacturers. Ranging in price from £5 to £50 per box, weight loss patches can be a costly gimmick to buy into.