Traveling colorist? b3 Brazilian Bond Builder 4 oz. bottle with dosage dispensing syringe is perfect for busy colorists on the go or, if you're new to trying b3 Brazilian Bond Builder. Our one-step system re-attaches and builds the bonds that make up the cellular membrane complex, helping prevent breakage and dramatically reducing damage during all color services. b3 can be mixed into all color formulations and will not slow processing time or alter color performance. Helps prevent damage during all color services Helps protect against loss of cuticle and cortex cells Dramatically reduces breakage Locks in color/improves pigment retention No change to booking schedule Compatible with all manufacturer formulations How To Use It Step 1: Starting with the dosage syringe (tip facing up), pull back the plunger to allow a little air inside the barrel. Step 2: Insert the tip of the syringe into the b3 Brazilian Bond Builder 4oz. / 120 ml bottle and turn upside down. Step 3: Pull the plunger back to the desired amount, pushing any overage back into the bottle. Step 4: Remove dosing syringe from the bottle. Dispense and mix into your lightener, color formulation, or b3 Demi Permanent Conditioner.