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Redken Acidic Bonding Concentrate Shampoo and Conditioner Duo restores weakened hair with strengthening, bond-building care.
This clever duo gently washes away build-up while supporting damaged hair bonds, helping reduce breakage and visible split ends. The shampoo creates a creamy, low-foam lather that feels cushioning on the scalp, while the conditioner wraps each strand in a silky, non-greasy veil.
Hair feels smoother, easier to comb, and less prone to snapping, even when wet. The light, salon-fresh scent leaves hair smelling clean and cared for without being overpowering.
Perfect for dry, sensitised, bleached, or colour-treated hair, and ideal for daily or every-other-day washing. Expect hair that looks more polished, feels stronger to the touch, and behaves better when styling.
How To Use Redken Acidic Bonding Concentrate Shampoo and Conditioner 500ml Duo
- Wet hair thoroughly with warm water.
- Apply a small amount of shampoo, focusing on scalp.
- Massage gently, then rinse well.
- Repeat if needed for extra build-up.
- Squeeze out excess water from hair.
- Apply conditioner mid-lengths to ends, avoiding roots if easily weighed down.
- Leave on for 3–5 minutes.
- Rinse thoroughly and style as usual.
Redken Acidic Bonding Concentrate Shampoo and Conditioner 500ml Duo Ingredients
Shampoo (Acidic Bonding Concentrate Shampoo): Aqua / Water, Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Sodium Lauroyl Sarcosinate, Sodium Chloride, Glycol Distearate, Parfum / Fragrance, Cocamide MIPA, Dimethicone, Hexylene Glycol, Citric Acid, Sodium Benzoate, Amodimethicone, Carbomer, Guar Hydroxypropyltrimonium Chloride, Trideceth-6, Polyquaternium-10, Lactic Acid, Tetrasodium EDTA, PPG-5-Ceteth-20, Limonene, Benzyl Salicylate, Linalool, Hexyl Cinnamal, Benzyl Alcohol, Cetrimonium Chloride, Sodium Hydroxide, 2-Oleamido-1,3-Octadecanediol.
Conditioner (Acidic Bonding Concentrate Conditioner): Aqua / Water, Cetearyl Alcohol, Behentrimonium Chloride, Cetyl Esters, Isopropyl Myristate, Parfum / Fragrance, Glycerin, Cetrimonium Chloride, Isopropyl Alcohol, Trideceth-6, Lactic Acid, Tartaric Acid, Citric Acid, 2-Oleamido-1,3-Octadecanediol, Hexylene Glycol, Benzyl Salicylate, Limonene, Linalool, Hexyl Cinnamal, Benzyl Alcohol.
Note: Please refer to bottle for full ingredients.
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Sodium C14-16 Olefin Sulfonate Cleansers / surfactantsCleansing surfactant
A strong, high‑foaming surfactant that helps lift away oil, dirt and product build-up.
May suitThose who prefer a deep‑cleaning or clarifying effect, especially in shampoos.
Worth knowingIt is often used in clarifying formulas because it creates a rich lather and provides an effective cleanse. Its intensity can feel more cleansing than milder surfactants, depending on hair type and formulation.
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Cocamidopropyl Betaine Cleansers / surfactantsCleanser / foam booster
A milder co-surfactant that helps cleanse, boost foam and soften the feel of stronger cleansers.
May suitMost hair types, including those wanting a gentler wash.
Worth knowingOften paired with other surfactants to make a formula feel milder.
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Sodium Lauroyl Sarcosinate Cleansers / surfactantsMild surfactant
A gentle cleansing agent that helps lift away oils and impurities.
May suitPeople looking for mild, low-foaming cleansers that are generally considered suitable for sensitive or dry hair types.
Worth knowingIt is often used as an alternative to stronger surfactants to create a softer, more conditioning lather. It can also support formula stability and mildness in blended surfactant systems.
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Sodium Chloride Thickeners and stabilisersViscosity adjuster
Sodium Chloride is used to adjust the thickness of shampoos and other cleansing formulas.
May suitThose interested in how a product’s texture and lather are achieved.
Worth knowingIt is a simple mineral salt that helps create a familiar shampoo feel and can influence how a cleanser spreads through the hair.
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Glycol Distearate Thickeners and stabilisersOpacifier and pearlising agent
Adds a pearlescent look and helps thicken and stabilise shampoos and conditioners.
May suitThose who like creamy, luxurious-feeling shampoo or conditioner textures.
Worth knowingIt also provides a mild conditioning feel, helping formulas spread smoothly through the hair. Its use is common in many everyday cleansing products.
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Cocamide MIPA Cleansers / surfactantsFoaming surfactant
A coconut-derived surfactant that helps boost foam and improve the cleansing performance of shampoos.
May suitPeople who like a rich, stable lather in their cleansing products.
Worth knowingIt is often used alongside primary surfactants to enhance texture and mildness. Its viscosity‑boosting effect can also improve the feel of rinse‑off formulas.
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Dimethicone SiliconesSlip and shine agent
Smooths the hair surface, adds slip and shine and helps reduce frizz.
May suitFrizz-prone, coarse or dry hair wanting a smooth, glossy finish.
Worth knowingSome people prefer silicone-free formulas, especially for certain curl routines. It is widely used and helpful in many smoothing products.
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Hexylene Glycol SolventsSolvent and texture enhancer
Hexylene Glycol helps dissolve other ingredients and improves the spreadability of haircare formulations.
May suitThose using stylers, treatments or serums that rely on smooth, even application.
Worth knowingIt is commonly used in both leave-in and rinse-off products to support stable, easy-to-apply textures. It can also assist with product absorption and consistency.
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Citric Acid pH adjusterspH adjuster
Fine-tunes the product pH, which can help the hair surface feel smooth.
May suitMost hair types as part of a balanced formula.
Worth knowingUsually present in small amounts to balance the formula.
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Sodium Benzoate PreservativesPreservative
Helps protect water-based products from spoilage so they stay usable.
May suitAll products that need a preservative system.
Worth knowingOften paired with other preservatives for broad protection.
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Amodimethicone SiliconesConditioning silicone
A conditioning silicone that targets rougher areas of the hair to smooth and protect.
May suitDamaged, frizz-prone or colour-treated hair wanting targeted smoothing.
Worth knowingDesigned to deposit where hair needs it most. Some prefer silicone-free formulas by choice.
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Carbomer Thickeners and stabilisersThickener and stabiliser
Carbomer helps thicken and stabilise gels, creams and styling formulas.
May suitAnyone who prefers smooth, consistent textures in styling or leave-in products.
Worth knowingIt helps formulas stay evenly mixed and glide easily through the hair or onto the scalp. It is widely used because it works in very small amounts and provides reliable texture.
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Guar Hydroxypropyltrimonium Chloride Conditioning agentsConditioning polymer
A conditioning polymer that helps smooth hair and improve slip.
May suitThose looking for softer, easier-to-detangle hair.
Worth knowingIt is derived from guar gum and is commonly used to enhance conditioning in shampoos and conditioners. It can also reduce static and improve manageability.
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Trideceth-6 Cleansers / surfactantsSolubiliser / surfactant
A non-ionic surfactant that helps blend oil-soluble ingredients into water-based formulas.
May suitThose using products with oils or silicones who want them to rinse evenly without residue.
Worth knowingIt is commonly used in shampoos and styling products to support stable, uniform textures. Its mild nature makes it suitable for a wide range of formulations.
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Polyquaternium-10 Conditioning agentsConditioning agent
A conditioning polymer that smooths the hair surface and helps with detangling and feel.
May suitMost hair types wanting smoother, easier-to-manage hair.
Worth knowingWidely used in shampoos and conditioners for slip and softness.
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Lactic Acid pH adjusterspH adjuster
Helps adjust and maintain the product’s pH for optimal performance.
May suitThose looking for formulas that help smooth the cuticle or gently refine the scalp surface.
Worth knowingLactic Acid can also provide mild hydrating and smoothing benefits in haircare. Its pH-balancing role helps support product stability and performance.
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Tetrasodium EDTA Chelating agentsChelating agent
Helps bind metal ions in water to improve product stability and performance.
May suitThose in hard-water areas who want shampoos and conditioners to rinse more cleanly.
Worth knowingChelating agents can support formula consistency and help prevent minerals from depositing on the hair or interfering with product texture. They are widely used in many rinse-off and leave-in formulations.
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PPG-5-Ceteth-20 Cleansers / surfactantsSolubiliser / surfactant
A non-ionic surfactant that helps blend oil- and water-based ingredients and improve product texture.
May suitThose using products that need lightweight cleansing or stable, uniform formulations.
Worth knowingIt is commonly used to solubilise fragrance oils and support smooth, consistent formulations. Its mild nature makes it suitable for a wide range of haircare products.
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Limonene Fragrance ingredientsFragrance component
A fragrance component that also occurs naturally in many citrus and plant oils.
Worth knowingA fragrance component that must be listed separately on labels because a minority of people can be sensitive to it. Its presence is normal, required disclosure and is not a quality signal.
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Benzyl Salicylate Fragrance ingredientsFragrance component
Benzyl Salicylate is a fragrance ingredient used to add a sweet, floral aroma to haircare products.
May suitThose who enjoy subtly floral-scented haircare or are monitoring specific fragrance allergens.
Worth knowingIt is one of the fragrance allergens that must be listed individually on product labels when present above certain levels. Its presence does not indicate product strength or quality, only that it contributes to the overall scent profile.
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Linalool Fragrance ingredientsFragrance component
A fragrance component found naturally in many flowers and spices.
Worth knowingA fragrance component that must be listed separately on labels because a minority of people can be sensitive to it. Its presence is normal, required disclosure and is not a quality signal.
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Hexyl Cinnamal Fragrance ingredientsFragrance component
A fragrance ingredient used to give products a light, floral scent.
May suitThose who enjoy subtly scented haircare products.
Worth knowingIt is one of the fragrance components that must be listed separately when present above certain levels. People with known fragrance sensitivities may choose to monitor for it.
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Benzyl Alcohol PreservativesPreservative
Helps preserve formulations and can also act as a solvent or light fragrance component.
May suitThose interested in understanding preservative systems or identifying potential fragrance allergens.
Worth knowingBenzyl Alcohol is commonly used in professional haircare to support product stability and texture. It can also naturally occur in some essential oils.
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Cetrimonium Chloride Conditioning agentsConditioning agent
A conditioning agent that helps smooth and soften the hair while reducing static and tangles.
May suitPeople looking for improved manageability, detangling and smoother-feeling hair.
Worth knowingIt is a commonly used quaternary ammonium compound that helps conditioners spread easily through the hair. It is effective even at low levels, which is why it appears frequently in rinse-off products.
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Sodium Hydroxide pH adjusterspH adjuster
Helps control and stabilise the pH of haircare formulations.
May suitThose interested in how product pH affects scalp comfort or hair cuticle behaviour.
Worth knowingIt is used in very small amounts to bring a formula to the desired pH range. Once adjusted, it does not act as a strong alkaline agent in the finished product.
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Oleamido-1,3-Propanediol Conditioning agentsConditioning agent
Helps soften and smooth the hair by improving slip and manageability.
May suitUseful for those seeking smoother, easier-to-detangle hair.
Worth knowingOleamido derivatives are often used in haircare for their conditioning and anti-static benefits. They can support a softer feel without adding heaviness.
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Octadecanediol Conditioning agentsEmollient conditioning agent
A fatty diol used to smooth and condition the hair.
May suitThose looking for softer, more manageable hair or enhanced slip in styling products.
Worth knowingFatty diols like this can help improve texture and reduce friction between hair fibres. They are commonly used in conditioners, serums and treatments for a smoother feel.
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Cetearyl Alcohol Conditioning agentsFatty alcohol conditioner
A fatty alcohol that helps soften hair and improve the texture of formulations.
May suitPeople looking for smoother, more manageable hair or richer, creamier product textures.
Worth knowingDespite the name, fatty alcohols are moisturising and conditioning rather than drying. They also help stabilise and thicken many haircare formulas.
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Behentrimonium Chloride Conditioning agentsConditioning agent
A conditioning agent that helps detangle and soften, reducing static and roughness.
May suitMost hair types, especially tangle-prone or coarse hair.
Worth knowingA common conditioner ingredient despite the chloride name, which simply describes its chemistry.
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Cetyl Esters Conditioning agentsEmollient / slip enhancer
Provides slip and softness while helping to smooth the hair’s surface.
May suitPeople looking for smoother, more manageable hair textures.
Worth knowingCetyl esters are wax‑like emollients that improve product spreadability and give a soft, conditioned feel. They are commonly used to enhance texture without heaviness.
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Isopropyl Myristate Conditioning agentsEmollient and texture enhancer
Helps soften hair and improve slip by adding light, non-greasy conditioning.
May suitThose looking for smoother-feeling hair or products that apply and spread easily.
Worth knowingIt is a lightweight ester often used to reduce greasiness and enhance the feel of conditioning formulas. It can also support fragrance and oil distribution within a product.
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Glycerin HumectantsHumectant
Attracts and holds water to help hair feel hydrated and soft.
May suitDry or dehydrated hair, and many curl and moisture routines.
Worth knowingA very common, well-tolerated humectant used across countless products.
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Cetrimonium Chloride Conditioning agentsConditioning agent
A conditioning agent that helps smooth and soften the hair while reducing static and tangles.
May suitPeople looking for improved manageability, detangling and smoother-feeling hair.
Worth knowingIt is a commonly used quaternary ammonium compound that helps conditioners spread easily through the hair. It is effective even at low levels, which is why it appears frequently in rinse-off products.
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Isopropyl Alcohol SolventsSolvent
Helps dissolve ingredients and supports quick-drying formulas.
May suitThose using styling products that benefit from fast evaporation, such as sprays.
Worth knowingIt is commonly used at low levels to improve texture and spreadability. It evaporates quickly, leaving minimal residue on the hair.
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Trideceth-6 Cleansers / surfactantsSolubiliser / surfactant
A non-ionic surfactant that helps blend oil-soluble ingredients into water-based formulas.
May suitThose using products with oils or silicones who want them to rinse evenly without residue.
Worth knowingIt is commonly used in shampoos and styling products to support stable, uniform textures. Its mild nature makes it suitable for a wide range of formulations.
-
Lactic Acid pH adjusterspH adjuster
Helps adjust and maintain the product’s pH for optimal performance.
May suitThose looking for formulas that help smooth the cuticle or gently refine the scalp surface.
Worth knowingLactic Acid can also provide mild hydrating and smoothing benefits in haircare. Its pH-balancing role helps support product stability and performance.
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Tartaric Acid pH adjusterspH adjuster
Helps regulate the pH of haircare formulas for stability and performance.
May suitThose interested in balanced, salon-grade formulations that rely on controlled pH.
Worth knowingAs an alpha hydroxy acid, it is primarily used in haircare for its ability to fine‑tune pH rather than for exfoliation. It supports product consistency and ensures other ingredients work as intended.
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Citric Acid pH adjusterspH adjuster
Fine-tunes the product pH, which can help the hair surface feel smooth.
May suitMost hair types as part of a balanced formula.
Worth knowingUsually present in small amounts to balance the formula.
-
Oleamido-1,3-Propanediol Conditioning agentsConditioning agent
Helps soften and smooth the hair by improving slip and manageability.
May suitUseful for those seeking smoother, easier-to-detangle hair.
Worth knowingOleamido derivatives are often used in haircare for their conditioning and anti-static benefits. They can support a softer feel without adding heaviness.
-
Octadecanediol Conditioning agentsEmollient conditioning agent
A fatty diol used to smooth and condition the hair.
May suitThose looking for softer, more manageable hair or enhanced slip in styling products.
Worth knowingFatty diols like this can help improve texture and reduce friction between hair fibres. They are commonly used in conditioners, serums and treatments for a smoother feel.
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Hexylene Glycol SolventsSolvent and texture enhancer
Hexylene Glycol helps dissolve other ingredients and improves the spreadability of haircare formulations.
May suitThose using stylers, treatments or serums that rely on smooth, even application.
Worth knowingIt is commonly used in both leave-in and rinse-off products to support stable, easy-to-apply textures. It can also assist with product absorption and consistency.
-
Benzyl Salicylate Fragrance ingredientsFragrance component
Benzyl Salicylate is a fragrance ingredient used to add a sweet, floral aroma to haircare products.
May suitThose who enjoy subtly floral-scented haircare or are monitoring specific fragrance allergens.
Worth knowingIt is one of the fragrance allergens that must be listed individually on product labels when present above certain levels. Its presence does not indicate product strength or quality, only that it contributes to the overall scent profile.
-
Limonene Fragrance ingredientsFragrance component
A fragrance component that also occurs naturally in many citrus and plant oils.
Worth knowingA fragrance component that must be listed separately on labels because a minority of people can be sensitive to it. Its presence is normal, required disclosure and is not a quality signal.
-
Linalool Fragrance ingredientsFragrance component
A fragrance component found naturally in many flowers and spices.
Worth knowingA fragrance component that must be listed separately on labels because a minority of people can be sensitive to it. Its presence is normal, required disclosure and is not a quality signal.
-
Hexyl Cinnamal Fragrance ingredientsFragrance component
A fragrance ingredient used to give products a light, floral scent.
May suitThose who enjoy subtly scented haircare products.
Worth knowingIt is one of the fragrance components that must be listed separately when present above certain levels. People with known fragrance sensitivities may choose to monitor for it.
-
Benzyl Alcohol PreservativesPreservative
Helps preserve formulations and can also act as a solvent or light fragrance component.
May suitThose interested in understanding preservative systems or identifying potential fragrance allergens.
Worth knowingBenzyl Alcohol is commonly used in professional haircare to support product stability and texture. It can also naturally occur in some essential oils.