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.

Love it

July 4, 2024 by Donna

I use all the time! Very happy with product.

Love my hair

March 3, 2024 by Brandy P.

This makes my hair look so good

Smells great and softens hair!!

April 23, 2023 by Susan N. 

Smells great and does what it claims!!

Great for vivid color

January 18, 2023 by Megan M.

I was skeptical, but I think this product really makes a difference. I have some magenta that I get re-dyed every 8 weeks, adding this spray after my shampoo seems to hold more of the color. Weeks 7 and 8 look better than they used to.

WOW

September 29, 2022 by Chelsey H.

This product works really well. I’m very happy with it.

Super product!

September 29, 2022 by Verified Customer

This is a great product, I’ve been using it for years

Little goes a long way!

September 29, 2022 by Gailde S

I was blown away by the shine I got using this.

Worth the money!

September 28, 2022 by Verified Customer

Lasts a long time! I pump 3 times in hand, use all over hair vs. spraying it.. it's dense so it will fall on the bathroom floor and won't last as long.. smells nice, holds in hair color, really like it

Worth the money

September 17, 2021 by Verified Customer

Pricey but lasts a long time .. pump 3 times in hand, use all over hair vs. spraying it.. it's dense so it will fall on the bathroom floor and won't last as long.. smells nice, holds in hair color, really like it

Use a little

March 25, 2021 by Gailde S

I was blown away by the shine I got using this.

B3

January 18, 2021 by Chelsey H.

This product works really well. I’m very happy with it.

Super product!

January 13, 2021 by Htowngirl

This is a great product, I’ve been using it for years. I was very glad to find it on Amazon at a better price than my hairdresser’s.

Great product to hold hair color longer

December 25, 2019 by Karen

Works well! Is light weight isn’t flattening on hair. Holds chemically treated hair color longer and hair looks shinier. The bottle lasts for months also.