Living Proof Triple Bond Complex 45ml, Brand New In Box - RRP £42. A weekly leave-in treatment and hair mask that makes hair 8x stronger* + more resistant to future damage while adding softness, smoothness + shine. Actually repairs hair* Scientifically proven to make hair 8 times stronger** Clinically proven to reverse a years worth of damage with one use*** Stylists prefer Triple Bond Complex over the leading bond builder Reduces visible signs of hair damage including split ends while preventing breakage + future damage Heat protection up to 450°F/232°C Pro tip: leave on for 10 minutes before adding styler and heat for best results