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Redken Extreme Length: Keep Your Length While You Grow

By Codie Hair, Owner, UKIYO Wānaka. Updated November 2026.

Extreme Length is for hair you're trying to grow long that keeps breaking before it gets there. The range uses biotin and Redken's Length Care Complex to strengthen the lengths and ends, so you keep more of the length you grow.

What does Redken Extreme Length do?

Hair grows at the rate it grows. What a range like this can do is reduce breakage and split ends, which is usually why hair seems stuck at one length. The conditioner and sealer are made with biotin, castor oil and Redken's Length Care Complex. The Triple Action Mask adds niacinamide and works on scalp, lengths and ends in one weekly treatment. The Sealer is a leave-in for split ends.

Who is Redken Extreme Length for?

Anyone growing their hair out who keeps losing the ends to splitting and snapping. If your hair is already breaking badly all over, start with Extreme and move to Extreme Length once it's stronger.

How to use the Extreme Length routine, in order

  1. Wash: Extreme Length Shampoo 300ml. Strengthening cleanse. Focus on the scalp.
  2. Condition: Extreme Length Conditioner 300ml. Through the lengths, comb gently, rinse.
  3. Weekly: Extreme Length Triple Action Mask 250ml. Use instead of conditioner once a week.
  4. Leave in: Extreme Length Sealer 150ml. Sealer on damp mid-lengths and ends, no rinse.

Which Extreme Length product should you start with?

  • Start here: conditioner and Sealer. The ends are where you lose length.
  • Full routine: shampoo, conditioner, weekly mask, Sealer.
  • Breaking badly as well: the Extreme Length Treatment Trio adds Extreme CAT.
  • And get a trim every 10 to 12 weeks. Taking off split ends early stops them travelling up the hair.

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Only what's in stock today is shown here. Genuine NZ salon stock, shipped from our Wānaka salon.

Free NZ shipping over $75.

Genuine Redken from a working salon. UKIYO is a hair salon on Helwick Street in Wānaka. Our stylists help clients choose their home care every day, and everything we sell online is genuine salon stock from the New Zealand distributor.

Free NZ shipping over $75. Not sure which range suits your hair? Call us on 03 443 1040.

Redken Extreme Length questions we get asked

Does Redken Extreme Length make hair grow faster?

No product changes how fast hair grows. Extreme Length helps hair break less, so you keep more of the length you grow.

Extreme or Extreme Length?

Extreme is for hair that's breaking all over. Extreme Length is for hair you're growing that splits and snaps at the ends.

Do I still need haircuts while growing my hair?

Yes, a light trim every 10 to 12 weeks. Split ends travel up the hair if you leave them.

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