Discover Goldwell BondPro Day & Night Bond Booster for weak, fragile hair, blended with microPROtec complex and Inter-Amino-Bond-Builder. Instantly transfers reinforcing soy protein deep into the hair and supports the bond-protein network. For long-lasting strength and stability of each individual strand. Targets weakened areas and reduces split ends by up to 99%. Reduces breakage by up to 99% for hair that is up to 10x more resilient.

Take a hazelnut size amount and work through towel-dried or dry lengths and ends. Leave-in. For maximum effect, leave-in overnight.