The network is only as good as its source.
Broker types and revenues: fixed vs variable spreads vs commission
Often times such supplements(like ones sold at WalMart) only contain 20 or less HCA- even when they are marked as higher(this was the conclusion of a recent study). Such low-grade products(like the ones from GNC usually) are basically scams, replete with fillers and additives and dont do much to give you the true benefits of the natural extract.
One of the biggest advantages of GC is its ability to prevent carbs from becoming fatty acids once inside the body- which is a result of the HCAs effects. Remember to take the dosage that is recommended on the bottle and do not deviate from it.