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With citric acid and bonding care complex that repairs weakened hair bonds, providing resistance and strength to the hair from within the fiber.
ACIDIC BONDING CONCENTRATE
Deep conditioning shampoo, provides strength and respects colored hair. Our most concentrated formula to date.
CONCENTRATED FORMULA
Acidic Bonding Concentrate is a treatment that repairs, hydrates and protects against loss of color in the hair. This range is made up of 3 references. Use of the full treatment is recommended for best results.
I always had the same problem: the skin behind my ear would peel off with the shampoos I used before. Since I started using this one, it hasn’t. And I’m not going to change it.
Translated by Google
Gender: Woman
Age: Between 26 and 35 years old
Country: ES
Has been using this product for: Not specified
Hair type:
Dry, Curly
Carolina Paula recommends this product
Mirjam
Verified purchase
25/01/2026
Acidic Bonding is a good shampoo
Acidic Bonding is a good shampoo. What I don’t like is the smell of the product. I also use All soft which has a better smell. Both products are good for curly hair
Translated by Google
Gender: Woman
Age: More than 50 years old
Country: NL
Has been using this product for: Not specified
Hair type:
Dry, Curly, Dyed hair
Mirjam recommends this product
elisabeth
Verified purchase
10/12/2025
Great shampoo
Repairs without adding weight
Translated by Google
Gender: Woman
Age: More than 50 years old
Country: FR
Has been using this product for: Between 6 months and 1 year
Hair type:
Dry
elisabeth recommends this product
Claudia
Verified purchase
09/12/2025
I love it!
The difference is noticeable from the very first use.
Translated by Google
Gender: Woman
Age: More than 50 years old
Country: ES
Has been using this product for: Not specified
Hair type:
Blonde, Dyed hair, Hair highlights
Claudia recommends this product
TINA
Verified purchase
06/12/2025
Perfect
Silicone-free shampoo that leaves your hair perfectly clean, protected, and with a very pleasant scent. Highly recommended.
Translated by Google
Gender: Woman
Age: ---
Country: ES
Has been using this product for: Between 6 months and 1 year
Hair type:
Dry
TINA recommends this product
Susana
Verified purchase
08/08/2025
I adore
I use it a lot and I love it, I recommend it
Translated by Google
Gender: Woman
Age: Between 36 and 50 years old
Country: PT
Has been using this product for: More than 5 years
Hair type:
Oily
Susana recommends this product
Montserrat
Verified purchase
21/06/2025
Ideal for fine hair
Since I tried this brand I haven’t changed, because my hair stays much cleaner.
Translated by Google
Gender: Woman
Age: ---
Country: ES
Has been using this product for: Between 1 and 3 years
Hair type:
Oily
Montserrat recommends this product
Natalia
11/12/2024
More strength and shine in the first application
This shampoo has helped transform and improve my hair since the first application. It feels stronger, healthier and has incredible shine. Plus, it cleanses deeply without drying it out. Perfect for damaged hair!
Comment made on sample product
Translated by Google
Gender: ---
Age: ---
Country: ES
Has been using this product for: Not specified
Hair type:
Natalia recommends this product
Maria
25/11/2024
Very good
This shampoo left my hair softer and more manageable from the first use, as well as giving it spectacular shine. I love how it strengthens and repairs my damaged hair while protecting it with its acidic pH formula.
Comment made on sample product
Translated by Google
Gender: ---
Age: ---
Country: ES
Has been using this product for: Not specified
Hair type:
Maria recommends this product
Pilar
21/11/2024
Hills
The shampoo is super cool, easy to apply, leaves hair super clean and soft. It also gives hair an ideal texture and more strength. I notice my hair is healthier and stronger than ever. I have used it with the brand’s conditioner and the combination has been the best.
Assessment Redken - ACIDIC BONDING CONCENTRATE Professional sulphate-free shampoo for damaged hair
FAQ Redken - ACIDIC BONDING CONCENTRATE Professional sulphate-free shampoo for damaged hair
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?
What are the functions of Redken Acidic Bonding Concentrate Shampoo?
Translated by Google
-01/07/2026
It is the reconstructor, protector and hydro-regulator of the capillary microarchitecture that guarantees: • Highly visible mechanical repair, avoiding breakage in a meticulous and professional manner. • Biological improvement of strength, providing absolute comfort, softness and a mane with constant shine. • High-end formula, making it a professional, safe and highly powerful option for everyday use.
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What is the technical usage guideline for professional recovery?
Translated by Google
-18/06/2026
It is applied mechanically to wet hair, massaging thoroughly until rinsed, guaranteeing deep cleansing, absolute comfort and great vitality in the hair fiber.
?
What functions does the Professional Acidic Bonding Concentrate Shampoo perform?
Translated by Google
-12/05/2026
It is the repairer, fortifier and hydro-regulator of the capillary microarchitecture that guarantees: • Highly visible mechanical action, sealing the cuticle in a thorough and professional manner. • Biological improvement of resistance, providing absolute comfort, softness and a constant balanced structure. • Sulfate-free formula, making it a professional, safe and highly powerful option for regular washing.
?
For which types of hair that need technical reconstruction is it indicated?
Translated by Google
-28/04/2026
It is meticulously developed for hair that requires a highly visible mechanical reinforcement and a meticulous biological action, achieving healthy, silky and deeply nourished hair.
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What is the technical usage guideline for obtaining an intensive repair?
Translated by Google
-05/03/2026
It is emulsified mechanically onto wet hair, massaging thoroughly until it forms a lather before rinsing, guaranteeing deep penetration, absolute comfort and great elasticity.
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How does Redken’s Acidic Bonding Shampoo work on treated hair?
Translated by Google
-14/01/2026
It is a high-performance reconstructor that works mechanically by sealing the cuticle and biologically by repairing damaged bonds, resulting in strong, shiny, and very resistant hair.
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For which hair types that undergo chemical processes is this format recommended?
Translated by Google
-10/01/2026
It is meticulously developed for hair that requires a highly visible mechanical reconstruction and a meticulous biological fortification, achieving revitalized and deeply healthy hair.
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How does Acidic Bonding Concentrate shampoo work on damaged hair fibers?
Translated by Google
-25/11/2025
It is a high-performance cleanser that works mechanically to repair weakened bonds and biologically to balance the hair’s pH, resulting in strong, resistant, and very soft hair.
?
Can I use this product on brown colored hair?
Translated by Google
Lebaillif 17/09/2022
Hello, Thank you for contacting us. Yes, this is not a product for a specific hair tone. We remain at your disposal. Cheers.
Sustainable packaging. Means that the wrapping or packaging is made of biodegradable, recycled or recyclable materials or allows for several useful lives, such as refillable bottles.
Refillable. Eco-designed products for multiple shelf lives and which can be refilled with the refill option once the product runs out. This is how we avoid the unnecessary consumption of resources and minimise the production of materials. A super sustainable option!
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