This is a professional only product
The packaging of this product may vary from the picture due to an upcoming packaging change. The pump is being replaced for a disc closure for sustainability reasons.
Ultimate Booster helps Ultimate Treatment’s proteins penetrate further into the cortex while strengthening the cross-linking of the hydrogen and salt bonds.Mix in 10% Ultimate Booster for hair that is normal to dry and 20% for hair that is the most resistant. Do not use Ultimate Booster on hair that is highly porous and weak.