Collection: Hi-Test

Hi-Test is a Quebec brand of professional developers for hair colour — formulated with a rich, creamy, drip-free consistency, lab-tested and stabilized for even, consistent results every time.

The Hi-Test collection at Gisèle Beauté offers the four essential volumes for every colour service: 10 volume (3%) for gentle oxidation with no lift, ideal for tone-on-tone colour; 20 volume (6%) for 0 to 1 level of lift and standard permanent colour; 30 volume (9%) for 2 to 3 levels of lift; and 40 volume (12%) for maximum lift of up to 4 levels. Each formula ensures precise application, perfect oxidation of every shade and flawless tones.