Carboload’s main purpose is to give the plant extra energy in form of carbohydrates. When your plant is during the peak of the bloom phase and you push it with more light, nutrients, etc., the need for carbohydrates is bigger than what the plant manage to produce itself. How big the need for carbohydrates is depends on how the plants environment in general is. If you have fungus and other beneficial bacteria in the root zone you always need to add extra carbohydrates to maximize your plant.
* Provides more carbs, energy for your plants
* Enables your plants to produce more and bigger flowers and fruits
* Use in the flower phase
Read more about Advanced Nutrients CarboLoad here