Does anyone know mgfi caps?

I would like to know if someone knows MGFI CAPS are some pills of which they say that it has the peculiarity of cleaning the combustion camera of your engine saving fuel and increasing the compression camera, I do not know what they tell them, a pill seems good to me for the headache but this product seems strange and I would like to know if someone knows it since I use another type of liquid products for the fuel, the range of product of Nextron.

Hot water was already invented, it seems to me that it is the same but in another presentation.- Greetings