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  2. Shampoo & Conditioner
  3. Leave in Conditioner
  4. Redken Extreme Length Sealer Leave-in Treatment
Redken Extreme Length

Redken Extreme Length Sealer Leave-in Treatment 5 oz

11 Reviews
$19.95 $26.85 (26% off)

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Redken Extreme Length Sealer Leave-in Treatment 5 oz
Redken Extreme Length Sealer Leave-in Treatment 5 oz
Redken Extreme Length Sealer Leave-in Treatment 5 oz
Redken Extreme Length Sealer Leave-in Treatment 5 ozRedken Extreme Length Sealer Leave-in Treatment 5 ozRedken Extreme Length Sealer Leave-in Treatment 5 oz

Product Description

Discover the nourishing Redken Extreme Length Sealer Leave-in Treatment. This solution is part of the Extreme Length range which targets tresses prone to damage and breakages.

Whether you want to nourish your long locks or encourage your short strands to grow, this treatment is a must in your bathroom cabinet. It contains a reparative formula which helps reduce breakages by an impressive 81% and minimize the appearance of split ends by 78%. This seal and strengthens the hair fibers to keep your mane in a healthy condition to ensure optimal hair growth.

Formulated with hair-loving biotin and soy protein, this leave-in treatment is designed to fortify and moisturize each strand. This means your hair feels smoother, softer and shinier for more manageable results.

Start with the Redken Extreme Length Shampoo. Take a look at the Redken Extreme Length Conditioner too.

Rebecca Jenkinson

Written by Rebecca Jenkinson, Beauty Writer

Product Details

Hair Type: Formulated for all hair types

Hair Benefit: Shine, smoothing, strengthening and hydrating

Hair Concern: Dry, damaged, split ends, weak, brittle and dullness

Ingredient Highlights: Contains ahas, biotin, ceramide, citric acid, glycerin and vitamin b.

Ingredient Features

If you're looking to strengthen the hair shaft and to lock nutrients in then the ceramide contained in this leave in conditioner provides the perfect solution. The vitamin b in this item will also work to add moisture to dry hair and to improve scalp health.

  • AHAs
  • Glycerin
  • Citric Acid
  • Ceramide
  • Vitamin B
  • Biotin

Redken says

"Redken Extreme Length Leave-In Conditioner with Redken's Length Care Complex made with Biotin and Soy Protein helps hair growth by strengthening damaged hair to grow longer and stronger. Extreme Length Leave-In Conditioner also helps prevent hair breakage."

How To Use

  1. Start with shampooed and conditioned towel-dried hair
  2. Take a generous amount of cream
  3. Smooth over mid-lengths to ends
  4. Leave in, do not rinse out
  5. Style as usual

Brand Bio

Protect and strengthen your strands with the Redken Extreme Length collection. This subsection of the Extreme range targets hair growth to help prevent breakages and split ends. It contains a nourishing remedy to smooth and nourish every strand for longer, luscious results. Shop the range at Cosmetify today. 

Where To Buy

Allbeauty, eCosmetics or Perfume's Club stock this product online in the US but it it has not been available to purchase since November 2021.


Based on 11 reviews from Look Fantastic, this Redken leave in conditioner is rated 4.6 out of 5. Product review scores are combined across stores and an average is calculated. Visit the website of the store to read review content.

Shipping & Returns

Products over $25.00 qualify for free standard shipping with Allbeauty, otherwise there is a charge of $2.95 with orders usually arriving within 4-6 days of dispatch. Express/Next day shipping option available. Worldwide shipping generally available, shipping costs vary by region, full list and postage costs available during checkout.

The returns policy for this store is around 60 days, see their website for further information.

Other Redken Ranges

  • Redken All Soft
  • Redken Extreme
  • Redken Frizz Dismiss
  • Redken Colour Extend
  • Redken Brews
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