John Frieda Go Blonder Controlled Lightening Spray is designed to gradually lighten blonde hair using heat activation, such as blow-drying or sunlight. It helps to reveal brighter, more radiant blonde tones without over-lightening, offering a controlled approach to enhancing your natural or colored blonde. This spray is ideal for maintaining or boosting brightness between salon visits. Consistent use builds up the level of lightness, creating natural-looking dimension in your hair. Achieve softer, sun-kissed highlights safely at home with this easy-to-use formulation.