Kerastase Resistance Bain Force Architecte 250ml is a shampoo from L’Oreal for weak, brittle or very damaged hair and split-ends. Use as an every day shampoo to strengthen and reconstruct hair and the result will be softer, smoother, stronger hair that is revitalised. Kerastase Resistance Bain Force Architecte contains Complexe Ciment-Cylane, which is a combination of intra-Cylane, Ceramide R and Pro-Keratin to condition and strengthen your hair.