Unbreak My Blonde Shampoo by Matrix.

Bond-strengthening sulfate-free shampoo is infused with citric acid to gently cleanse sensitive hair.

Unbreak My Blonde Sulfate-Free Strengthening Shampoo is a bond strengthening shampoo developed to revive all types of lightened hair. This highly-conditioning sulfate-free shampoo gently cleanses hair while strengthening bonds with each use leaving hair 3x stronger.

Key Benefits:
Vegan Formula
Bond-strengthening
Revives all types of hair & textures from chemical damage
Highly conditioning sulfate-free technology
Reinforces weakened bonds
Revives bleached hair
Leaves hair soft, shiny and stronger