Extreme Length Shampoo and Conditioner Duo 300ml
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Delivery
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Click & Collect
Free Click and collect is available at checkout. Orders are ready within 1 hour during opening hours. Store Address: 56 Parer Rd, Airport West, VIC Australia 3042 Phone (03) 9999 5902
Redken Extreme Length Shampoo and Conditioner Duo 300ml is a length-strengthening haircare system designed to support healthy hair growth and reduce breakage.
Formulated with biotin, this duo helps fortify weakened strands from root to tip.
The Extreme Length Shampoo gently cleanses while strengthening the hair fibre to reduce breakage and split ends. The Conditioner softens and detangles, helping to prevent damage that can interrupt growth. Ideal for anyone growing out their hair or dealing with weak, breakage-prone strands, this salon-size duo supports longer, stronger, healthier-looking hair over time.
How To Use Redken Extreme Length Shampoo and Conditioner Duo 300ml
• Apply shampoo to wet hair, lather, and rinse
• Follow with conditioner from mid-lengths to ends
• Leave in for 1–3 minutes
• Rinse thoroughly
Redken Extreme Length Shampoo and Conditioner Duo 300ml Ingredients
Shampoo:
Aqua / Water / Eau, Sodium Laureth Sulfate, Disodium Cocoamphodiacetate, Coco-Betaine, Glycol Distearate, Glycerin, Cocamide MIPA, Biotin, Citric Acid, Polyquaternium-10, Sodium Hydroxide, Guar Hydroxypropyltrimonium Chloride, Sodium Chloride, Salicylic Acid, Limonene, Hexyl Cinnamal, Linalool, Benzyl Alcohol, Sodium Benzoate, Parfum / Fragrance
Conditioner:
Aqua / Water / Eau, Cetearyl Alcohol, Behentrimonium Chloride, Cetyl Esters, Biotin, Citric Acid, Sodium Hydroxide, Isopropyl Alcohol, Glycerin, Limonene, Linalool, Hexyl Cinnamal, Benzyl Alcohol, Salicylic Acid, Parfum / Fragrance
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Sodium Laureth Sulfate Cleansers / surfactantsCleanser
Helps cleanse the hair and scalp by removing oil, sweat and product build-up.
May suitOily scalps, heavy product users and people who like a strong cleanse.
Worth knowingMay feel too cleansing for some dry, curly, colour-treated or sensitive hair types. This depends on the full formula and your hair needs.
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Disodium Cocoamphodiacetate Cleansers / surfactantsMild cleansing surfactant
A gentle amphoteric surfactant used to cleanse while helping to reduce the harshness of stronger cleansers.
May suitThose looking for mild, low-irritation cleansing in shampoos or co-washes.
Worth knowingIt is often combined with other surfactants to create a balanced, gentle lather. Its amphoteric nature helps support mildness in sulphate-free formulas.
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Coco-Betaine Cleansers / surfactantsMild surfactant
A mild, coconut-derived surfactant that helps cleanse and create a soft lather.
May suitPeople looking for gentle cleansing that doesn't feel stripping.
Worth knowingIt is often used alongside other surfactants to improve foam quality and overall mildness. Common in shampoos designed for frequent use.
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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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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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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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Biotin Anti-dandruff / scalp careScalp-supporting vitamin
Biotin is a B‑vitamin used in haircare to support the condition of the scalp and hair fibre.
May suitThose looking for formulas that help maintain a healthy-feeling scalp or the appearance of stronger hair.
Worth knowingIn topical products it is used in small amounts to complement other strengthening or scalp-care ingredients. Its effects are supportive rather than dramatic on its own.
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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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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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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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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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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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Salicylic Acid Exfoliating acidsScalp exfoliant
Helps dissolve dead skin buildup on the scalp and supports a clearer, fresher surface.
May suitPeople dealing with flaky scalps, congestion or product buildup.
Worth knowingIt is widely used in scalp-care formulas because it breaks down excess oils and debris without needing physical scrubbing. Often found in dandruff-control 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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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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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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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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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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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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Biotin Anti-dandruff / scalp careScalp-supporting vitamin
Biotin is a B‑vitamin used in haircare to support the condition of the scalp and hair fibre.
May suitThose looking for formulas that help maintain a healthy-feeling scalp or the appearance of stronger hair.
Worth knowingIn topical products it is used in small amounts to complement other strengthening or scalp-care ingredients. Its effects are supportive rather than dramatic on its own.
-
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.
-
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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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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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.
-
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.
-
Salicylic Acid Exfoliating acidsScalp exfoliant
Helps dissolve dead skin buildup on the scalp and supports a clearer, fresher surface.
May suitPeople dealing with flaky scalps, congestion or product buildup.
Worth knowingIt is widely used in scalp-care formulas because it breaks down excess oils and debris without needing physical scrubbing. Often found in dandruff-control products.