After the loading phase, one should be able to take a steady-state amount of 3-5 grams of creatine a day. The information available on supplements' packaging can be confusing (image below). When the labelling seems to refer to the mass of a capsule, are there any common conventions that are assumed for inferring the amount of creatine?
There is a standard way to read supplement labels. The linked webpage is a useful visualization. There is an "active" section and an "other" or "non-active" section in a supplement. Usually the ingredients of interest are listed in the first section with their amount.
In this case, each serving of 2 capsules contains 1500 mg of the 'patented' creatine-blend. Therefore, each capsule contains 750 mg of creatine-blend. In some scenarios, the additional non-medicinal ingredients would be in excess of the amount listed (i.e. each capsule might actually weigh 800 mg = 750 mg creatine + 50 mg non-medicinal) but they can also be included. In your case, you can actually look at the patent filed for the creatine-blend and find that:
In capsule form, the capsule includes the following formulation:
Creatine Monohydrate, 1000 mg
Maltodextrin, 200 mg
Magnesium Stearate, 5 mg
Magnesium Glycerol Phosphate, 25 mg
Soda Ash, 5-1000 mg
Natural and/or Artificial Flavors, 20 mg
The method for making capsules is to place 1000 mg of creatine monohydrate in a mixing vessel. The pH is adjusted to be between 7 and 14 by adding soda ash. The maltodextrin, magnesium stearate (a flow agent) and natural and/or artificial flavors are added to desired taste and sweetness. The pH is again checked, and magnesium glycerol phosphate is added to adjust the pH to be between 7 and 14. The mixed powder is then processed by a conventional encapsulation machine which prepares capsules of the powder.
So, in this case you can see that each capsule serving contains 1 g of creatine monohydrate. IMO, this is uncommon to know the makeup of proprietary blends but this is a great example of how labels can be misleading.
I'd gamble that if you were to read the directions they instruct you to take 4 capsules per day to meet the 3 g maintenance phase requirement. However, we can now see that you'd only be getting 2 g of creatine monohydrate.