Redken Extreme Length Shampoo with Biotin

Redken Extreme Length: How to Grow Longer, Stronger Hair

Oct 13, 2026

If your hair seems to stop at the same length no matter how long you grow it, breakage is usually the reason. Ends snap and split before they get the chance to add length. Redken's Extreme Length range is built for exactly that problem. It strengthens fragile hair so it breaks less, which helps you keep the length you grow. Here's what's in the range, who it suits and how to use it.

What is Redken Extreme Length?

Extreme Length is Redken's range for people growing their hair long. The shampoo and conditioner are made with biotin, a B vitamin, plus Redken's Length Care Complex. The range is designed to fortify hair from root to tip and reduce breakage.

Redken's own testing found 81% less breakage when the shampoo, conditioner and leave-in are used together as a system.

Redken Extreme Length Shampoo with Biotin

Redken Extreme Length Shampoo with Biotin

A gentle gel shampoo that cleanses while helping to strengthen hair and prevent breakage. It's the starting point of the routine and comes in 300ml and 1L.

Shop Redken Extreme Length Shampoo

Redken Extreme Length Conditioner

Redken Extreme Length Conditioner

A lightweight cream conditioner that nourishes and helps strengthen fragile strands and ends, and adds shine without weighing hair down. Available in 300ml, 500ml and 1L.

Shop Redken Extreme Length Conditioner

Leave-In Sealer and Triple Action Treatment

The Extreme Length Leave-In Sealer is the third step of the system behind the breakage result. It's applied to damp lengths and ends after conditioning and left in. The Extreme Length Triple Action Treatment is an extra treatment step for the lengths when your hair needs more care.

Who is it for?

  • Anyone growing their hair long who keeps losing length to breakage
  • Hair with split or fragile ends
  • Hair weakened by heat styling or rough brushing

How to use the Extreme Length routine

  1. Shampoo. Apply Extreme Length Shampoo to wet hair, lather and rinse.
  2. Condition. Work Extreme Length Conditioner through the lengths and ends, then rinse.
  3. Leave in. Apply the Leave-In Sealer to damp lengths and ends. Don't rinse.
  4. Style as usual. Use a heat protectant before hot tools to keep breakage down.

Tips to keep the length you grow

  • Use a wide-tooth comb or detangling brush on wet hair, starting from the ends.
  • Turn down the heat on straighteners and curling irons.
  • Get regular light trims to stop split ends travelling up the hair.
  • Avoid tight ponytails and elastics with metal joins.

FAQs

Does Redken Extreme Length make hair grow faster?

It doesn't change how fast hair grows from the scalp. It helps your hair break less, so more of the length you grow stays on your head.

Can I use just the shampoo?

Yes, but Redken's breakage result is based on using the shampoo, conditioner and leave-in together. For the best results, use the full routine.

Where can I buy Redken Extreme Length in Sydney?

Shop the range online at Unlimited Hair & Beauty Supplies with fast shipping from Sydney, or in store at Wetherill Park.

Shop the full Redken range.

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