Redken

Redken Extreme Length Conditioner for Damaged Hair, 33.8 fl oz — Biotin & Castor Oil Strengthening & Detangling

High-performance beauty made for confident daily results

£64.29

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Why customers choose Remedies Beauty

Redken Extreme Length Conditioner is a biotin- and castor-oil enriched conditioner that helps fortify damaged hair to reduce breakage and support longer, healthier-looking strands.

This conditioner is formulated to work as part of Redken's Extreme Length regimen to target weak points along the hair fiber. It combines strengthening ingredients with lightweight conditioning to detangle, smooth, and help protect hair from future mechanical and styling stress. The result is hair that feels nourished and more resilient, making it easier to retain length over time.

How does this conditioner help hair grow longer?

The formula focuses on strengthening weakened areas of the hair shaft so fewer strands snap off as they grow. Rather than accelerating biological growth, it helps hair retain the length it achieves by lowering breakage during brushing and styling.

  • Biotin helps support hair fiber strength for reduced breakage.
  • Castor oil provides light conditioning and helps smooth cuticles.
  • Works best when used with Extreme Length Shampoo and Sealer for a full-strengthening routine.

Will this conditioner work on my hair type and texture?

Extreme Length Conditioner is designed for all hair types and textures, from fine to coarse. Its lightweight conditioning profile means it won't weigh fine hair down, while still offering slip and nourishment for thicker or textured hair.

  • Safe for color-treated and chemically processed hair when used as directed.
  • Light formula that detangles without heavy residue.
  • Suitable for straight, wavy, curly, and coily textures seeking strength and length retention.

How should I include this in my haircare routine?

Use after shampooing: apply from mid-length to ends, leave in briefly, then rinse for best results. For a targeted approach, combine with the Extreme Length Shampoo and Sealer Leave-In Treatment to create a system that addresses breakage at multiple points.

  • Apply to towel-dried hair after shampooing; leave for 1–2 minutes then rinse.
  • Pair with Extreme Length Shampoo for reduced breakage across the routine.
  • Follow with Sealer Leave-In Treatment to lock in benefits and reduce split ends.

What visible improvements should I expect and in what timeframe?

Improvements are most noticeable when the conditioner is used consistently within the Extreme Length system. Users commonly report easier detangling, smoother texture, and fewer snapped ends; long-term benefits appear as retained length when breakage is minimized.

  • Smoother hair surface and added shine after regular use.
  • Reduced visible split ends when the full system is followed consistently.
  • Less breakage during combing and styling compared with untreated hair.

Who is this for: Redken Extreme Length Conditioner is intended for anyone trying to strengthen damaged hair and keep more of the length they grow. It is especially useful for people who experience frequent breakage, struggle with split ends, or want a professional-strength, lightweight conditioner that pairs well with other Redken Extreme Length treatments.

Ingredients

AQUA / WATER / EAU</div><div>CETEARYL ALCOHOL</div><div>PROPYLENE GLYCOL</div><div>MALEIC ACID</div><div>ETHANOLAMINE</div><div>BEHENTRIMONIUM METHOSULFATE</div><div>PARFUM / FRAGRANCE</div><div>STEARAMIDOPROPYL DIMETHYLAMINE</div><div>GLYCERIN</div><div>PHENOXYETHANOL</div><div>HYDROXYETHYLCELLULOSE</div><div>RICINUS COMMUNIS SEED OIL / CASTOR SEED OIL</div><div>QUATERNIUM-91</div><div>POLYQUATERNIUM-37</div><div>BENZOIC ACID</div><div>PARAFFINUM LIQUIDUM / MINERAL OIL / HUILE MINERALE</div><div>CETRIMONIUM CHLORIDE</div><div>CETRIMONIUM METHOSULFATE</div><div>PPG-1 TRIDECETH-6</div><div>BENZYL BENZOATE</div><div>BIOTIN</div><div>LIMONENE</div><div>BENZYL ALCOHOL</div><div>ACRYLATES COPOLYMER</div><div>LINALOOL</div><div>2-OLEAMIDO-1,3-OCTADECANEDIOL</div><div>SORBITAN OLEATE</div>

FAQ

Q: Can I use this on colored or chemically treated hair?

A: Yes. The conditioner is suitable for color-treated and chemically processed hair when used as directed.

Q: How often should I use Redken Extreme Length Conditioner?

A: Use it after every wash; consistent use within the Extreme Length system yields the best results for reduced breakage.