Defoliation will decrease your plants ability to produce energy, reducing growth potential. Simple plant biology.
Brix is just another way to get people to spend money and is something to do with nutritional values of food you eat and will not increase the potency of your flowers.
Any good source of humic and/or fulvic acids will do exactly what you are looking for, without needing any sort of "wonder nutrient".
Hope this helps,.....
Organoman.