When hair is genuinely damaged, brittle, dull, and snapping at the ends, a quick rinse-through conditioner can smooth it for the day, but it can't reach far enough to rebuild what's actually been lost. Colour, heat, and everyday wear break down both the internal cement that holds the strand together and the protein that gives it its structure, and once enough is gone, damaged hair needs more than a surface fix to feel strong again.

This is a reconstructing mask you leave on for five minutes to let it sink in and rebuild. Amino acids and a wheat protein refill the structure that damage has stripped from inside the strand, ceramides work like fresh cement between the cells to reinforce the fibre, and resurrection plant sap restores resilience to weakened hair. It's the deep-treatment step of the Force Architecte repair routine, richer than the Ciment Anti-Usure conditioner, so use it after Bain Force Architecte when damaged hair needs a real rebuild rather than an everyday smooth-over.

Right after one 5-minute treatment, damaged hair feels stronger, softer, and more elastic, with smoother lengths and ends that catch and split less. Used regularly as part of the Résistance routine, the rebuilt structure adds up, so brittle, over-processed hair gradually regains strength and shine and breaks less over time.