yubi blonde purple serum is a blow-dry leave-in, preserving the coolest blonde shades as it reveals glowing, replenished hair fiber while protecting from heat styling. yubi blonde serum benefits: •neutralize brassy tones•heat protection•nourishes hair•hair gets more shine (+52%*)•anti-breakage effect (95% less hair breakage**)discover shu uemura’s art of hair yubi blonde full range to preserve the cool blonde state of grace, which requires the utmost care: replenishmentto provide full nourishment from roots to tipsneutralizationto neutralize warm hues & compensate glow fading awayheat protectionpreserving hair fiber while blow-drying*Instrumental test**Instrumental test after 4500 combingsUse:apply 1 - 2 pumps to clean, damp lengths. Blow dry. Do not rinse.100 ml Shu Uemura Yubi Blonde Serum 100 ml