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.

Zelf

June 24, 2021 by Shiva A

Great actual product

July 14, 2019 by KRISTEN C

Products awesome. Love that it's one step. 2 out of the last 3 bottles i recieved had the top fall off. Ended up wasting half the bottles. It's a shame because the product itself is great. Will probably end up trying something else next time.

It is working for me

September 4, 2017 by Bettina

I just started using this product. I have used it in my lightener and also my toners. I like not having to do two steps and it leaves the hair feeling amazing. I will continue to use this product for sure. Thank you for making a amazing product.