Leave-in hair treatment Goldwell Dualsenses Bond Pro Day&Night Bond Booster Bond Pro Day & Night Bond Booster is an intensive no-rinse treatment, ideal for fragile and sensitized hair formulated to reduce breakage and split ends by up to 99%. It is the hero product of the Bond Pro Goldwell line. Benefits: Bond Pro Day & Night Bond Booster is enriched with an ingredient that actively supports the stimulation of inter-amino bonds and microPROtec that ensures that amino acids and peptides penetrate deep into the hair cortex and target damaged areas of the hair. The peptides are stored in the inner cortex of the hair through ionic and hydrogen bonds, resulting in stronger and more resistant hair fibers. Strengthens the hair fibers by up to 99% Optimal care and refreshment. Against split ends. Inter-Amino-Bond-Builder technology: strengthens the hair from the inside out by forming new ionic and hydrogen bonds. MicroPROtec Complex: quickly and evenly distributes the essential care ingredients without weighing down the hair and protects against color fading. Key ingredients Peptides and amino acids penetrate the hair cortex, targeting damaged areas. Compounds from red and brown algae extracts form ionic and hydrogen bonds with the remaining hair proteins, embedding these peptides in the inner cortex. Perfume Very delicate and fresh tea, wrapped in subtle iris and musk, with a hint of peach and cedar wood.