The lighter the base shade, the less mix of the Booster is required. These are mainly used to achieve the following different results:
– To enhance and add intensity with the chosen tone/reflex (add up to 25% of a Booster above the total colour formula, excluding Developer).
– To cancel or neutralise out an unwanted tone/reflex (include up to 25% of a Booster inside the total colour formula, excluding Developer).