As mentioned above, Miracle grow has a box at most any place that sells the standard Miracle grow.
There is no shame in using it at all.. as long as you read ALL directions on the box and the leaves on the plant, you will be fine and the plant won't be none the wiser.
One of the biggest problems with Miracle grow is they put their outdoor feeding instructions in big bold print on all their boxes. So people add a tbsp of product instead of the tsp it calls for in small print for indoor plants in pots.
On the bloom booster box, the indoor instructions are actually on the inside of the lid, and the outside instructions just say 'general use' .. but then on the inside under the flap it says 'for indoor plants, only use xxx amnt etc'. But if you just read the back and follow their 'general' directions, you are going to seriously burn your plants a few feedings in. *look for 'indoor' instructions.. hidden.. sometimes it seems like a secret.. but it's there.