First of its kind Color Depositing Mask: This shade shifting color harnesses the power of light, responding dynamically to its surroundings and revealing an ever-changing palette of mesmerizing hues. IDEAL FOR LIGHTER BASES: Works best on blonde to light brown hair or pre-lightened strands for vivid, even color. On darker hair, expect a subtle tint or tone boost. Not formulated for gray coverage. Apply like a pro: Apply to clean, dry hair in sections, combing through for even saturation; Process for 15 minutes, then rinse thoroughly in cool water. Gloves are recommended for an easy, mess-free experience. If using a dark color, we recommend rinsing out hair in stainless steel sink or darker sink to avoid staining. LEAPING BUNNY CERTIFIED: All XMONDO Hair Color products are Leaping Bunny Certified which means we NEVER test on animals and every ingredient is 100% all vegan, all the time. Free of harsh chemicals, ammonia, and peroxide and gluten-free, SLS/ SLES free, and paraben free XMONDO Hair Blue + Purple Shade Shift Color harnesses the power of light, responding dynamically to its surroundings and revealing an ever-changing palette of mesmerizing hues. Experience the magic and embark on a color transformation like never before