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Redken Acidic Bonding Concentrate is a hair care line that we at Haarspullen always recommend for damaged hair. And we’re not the only ones excited. The line has become a real favorite among hair specialists and is widely visible on social media due to the impressive results. Especially with hair damaged by bleaching, we see great improvements, but also with damage from regular use of heat tools, this line really makes a difference.
Whatever the cause: damaged hair requires more than just a nourishing mask. When the hair structure is compromised, you need care that goes beyond hydration alone.
In this blog, we explain exactly what a bonding treatment is, what Redken Acidic Bonding makes it so effective, who the line is suitable for, and how to use these products for the best results!
Dry hair doesn’t automatically mean your hair is severely damaged. But if you notice that your hair:
breaks more quickly
feels elastic when wet
split ends remain despite trimming
looks rough and porous
is difficult to manage
then it’s likely that your hair bonds are weakened.
Especially through bleaching, coloring, chemical treatments, and heat, the internal bonds in your hair get damaged. These bonds are what make hair strong. Once these bonds weaken, your hair loses its strength. At that point, hydration alone is no longer enough, and you really need a bonding treatment.
A bonding treatment ensures that the damaged ‘hair bonds’ inside your hair become strong again. Simply put: your hair consists of multiple layers and bonds that together provide strength. When these bonds get damaged, for example by bleaching, your hair becomes weaker and often brittle.
A bonding treatment supports these weakened bonds and helps your hair become stronger again. That means:
less hair breakage
more elasticity
stronger hair from within
better resistance to future damage
So it’s not a layer to temporarily smooth your hair, but a treatment that strengthens the foundation of your hair from within.
When your hair is damaged, you notice it in every way. It feels rough, breaks more easily, and seems to have lost its resilience. When you wet it, it stretches like a rubber band. Your ends split faster, and no matter how often you use a mask, it still feels fragile.
This is because the internal hair bonds have weakened. Think of it like a rope whose fibers are slowly coming loose. On the outside, you can still smooth it, but inside it lacks strength.
Redken Acidic Bonding specifically targets that problem. The bonding technology helps support and strengthen weakened hair bonds. As a result, your hair gradually gains more structure and resilience. The result? Less hair breakage during brushing, fewer split ends, and hair that feels stronger instead of fragile.
But repair from within is not enough if the outside remains open.
Chemical treatments disrupt the natural pH balance of your hair. The cuticles remain open, causing your hair to become rough, frizzy, and porous. This is also why color fades faster and shine disappears from your hair.
The acidic formula of this line helps close the hair cuticles again. And you can see and feel that immediately:
Your hair looks smoother
It feels softer
Frizz visibly decreases
Your color stays intense longer
Your hair regains a healthy shine
So where your hair was previously fragile, porous, and brittle, it feels stronger, more flexible, and more balanced after consistent use. Not because it is temporarily coated, but because it is supported from within and protected on the outside.
The line is especially suitable for hair damaged by:
bleaching or lightening
regular coloring
chemical treatments
intensive use of heat tools
Okay. You now know your hair needs strengthening. But which products from the line should you use exactly?
These products form the core of your repair routine:
Redken Acidic Bonding Shampoo
The start of repair. Cleanses gently and immediately supports weakened hair bonds during washing.
Redken Acidic Bonding Conditioner
Makes hair softer, helps close the cuticles, and reduces frizz. As a result, your hair shines and looks healthier.
Choose at least one of the following essentials:
This is your daily protective layer. It strengthens fragile lengths and protects against heat, so your hair breaks less easily during blow-drying or styling.
This is the intensive repair step within the line. Use it once or twice a week when your hair feels extra weakened, dry, or porous. The mask supports the hair bonds and simultaneously provides deep care.
Does your hair need more than just the basics?
Then you can expand your routine with more targeted repair steps.
Redken Acidic Bonding Pre-Treatment
Use this before washing. Think of it as a preparatory boost for severely damaged hair. Especially when your hair has been bleached or chemically treated multiple times, this product helps start the repair process more intensively.
Redken Acidic pH Sealer
This is the perfect finisher after conditioner or mask. The pH Sealer helps close the hair cuticles extra well, making your hair feel smoother, shine more, and frizz less. Ideal when your hair is very porous or when you notice your color fading quickly.
Redken Acidic Bonding Concentrate Serum
Specifically targets vulnerable lengths and ends. This serum provides extra strengthening where hair breaks most quickly. Notice your ends thinning or breaking fast? Then this is a smart addition.
Redken Acidic Bonding Hair Bandage Balm
This balm is ideal for dry, damaged lengths that need extra care as well as strengthening. It makes hair more flexible and helps it look healthier without weighing it down.
Yes, absolutely. Redken ABC is actually perfect for colored hair! The low pH helps close the hair cuticles, which better retains color pigment. This keeps your hair color intense and fresh for longer. For bleached or lightened hair, which is often extra fragile, this line offers an important strengthening step in the routine.
A valid question. Repairing products can sometimes feel heavy.
The strength of this line lies in the technology, not in a thick or greasy formula. Use the right amount and focus on the lengths and ends, and your hair will stay light and flexible.
For very fine hair, you can use a little less conditioner and apply the leave-in mainly to the damaged areas.
Often, you’ll notice after just a few washes that your hair feels softer and frizzes less. It becomes easier to comb through and looks shinier.
The real structural strengthening is visible with consistent use over several weeks. Hair breaks less easily and feels noticeably stronger.
When your hair is visibly damaged and standard care is no longer enough, it’s wise to take it a step further. Redken Acidic Bonding combines structural repair with protection and shine.
It’s not a temporary fix, but a targeted approach for stronger and healthier-looking hair.
Are you investing in coloring or bleaching? Then investing in repair should naturally be part of that.
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