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Redken Extreme Length Biotin Conditioner For Longer Hair – Promotes Healthy Hair Growth, Strengthens & Detangles Damaged Hair, Infused With Biotin & Castor Oil​

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As low as $9.33 / mo
  • – 6-month term
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Size: 33.8 Fl Oz (Pack of 1)


Features

  • Biotin and Castor Oil: Redken Extreme Length Conditioner is a strengthening conditioner formulated with biotin and castor oil to help strengthen damaged hair so it can grow longer
  • Less Breakage, Longer Hair: Helps you achieve your maximum hair length, up to 6 inches of growth in one year. Fortifies and strengthens hair for less breakage and visibly reduces split ends
  • For All Type & Textures: Ideal for all hair types and textures, but especially for those who have damaged hair that they struggle to grow passed a certain length
  • Lightweight Nourishment: Gives hair a lightweight, nourished feel and helps protect hair from future damage
  • Suitable for hair seeking length and strength

Product Dimensions ‏ : ‎ 3.15 x 3.15 x 9.76 inches; 2.31 Pounds


Item model number ‏ : ‎ I0122178


UPC ‏ :


Manufacturer ‏ : ‎ Redken


Best Sellers Rank: #1,031 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #15 in Hair Conditioner


#15 in Hair Conditioner:


Customer Reviews: 4.5 4.5 out of 5 stars (7,715)


Brand Name: Redken


Age Range Description: Adult


UPC: 884486456182 884486435583


Manufacturer: Redken


Global Trade Identification Number: 82


Manufacturer Part Number: I0122178


Model Number: I0122178


Scent Name: Floral


Item Form: Fl


Active Ingredients: castor oil


Hair Type: damaged


Item Weight: 1.05 Kilograms


Number of Items: 1


Item Volume: 33.8 Fluid Ounces


Unit Count: 33.8 Fluid Ounces


Recommended Uses For Product: salon;spa


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Helps My Hair Feel Stronger and Healthier Fast! Helps My Hair Feel Stronger and Healthier Fast!
Size: 10.1 Fl Oz (Pack of 1)
I’ve been using the Redken Extreme Length Biotin Conditioner for a few weeks, and my hair already feels softer, smoother, and easier to detangle. I love that it’s infused with biotin and castor oil, which nourishes my hair and makes it feel stronger without weighing it down. My damaged ends feel more resilient, and I’ve noticed less breakage while brushing. The conditioner has a light, pleasant scent, and a little goes a long way. I’m excited to see how much healthier and longer my hair will get with continued use. Highly recommend for anyone looking to strengthen hair and support growth! ... show more
Reviewed in the United States on March 29, 2026 Reviewed in the United States on March 29, 2026 by Ana

  • One Use; Noticeable Difference!!
Size: 10.1 Fl Oz (Pack of 1)
Not even joking guys, after one use I noticed a difference in my hair texture and volume!!!!!! For me, it's normal for my hair to dry all the way after a shower and then still be flat in the morning because I slept on it, not with this product! And you know your hair is soft when it's the first thing your boyfriend points out in the morning! It was memorizing to see a product actually work this well the first time I ever used it. I paired this with the shampoo as well as the Kerastase Genesis oil (pink/red/clear dropper bottle) and it worked like a charm! ... show more
Reviewed in the United States on April 22, 2026 by Erin

  • Amazing
Size: 10.1 Fl Oz (Pack of 1)
I purchased this along with the extreme lengths triple action treatment mask and shampoo and I have been using all three for about two months. I just had my highlights done right before I purchased these and I have major roots already. Normally, I can go nearly 4 months between touch ups but that’s not going to happen now because these products are definitely helping my hair grow. I have less breakage, shed, and my hair feels thinker/fuller. Previous to purchase these Redken products, I had been using Olaplex products for two years. My hair was really damaged prior to Olaplex from bleaching it for so long. I still use Olaplex shampoo and conditioner once in awhile, I use their mask once a week, as well as the heat protection creams every time I wash my hair. My hair is so much healthier but I was looking for length which is why I added Redken and it’s working!! I highly recommend. I purchased on my own and did not receive any incentives ... show more
Reviewed in the United States on March 18, 2026 by hnot

  • Leaves my hair soft, smelling amazing, & looking healthy! My “treat yo self” go to conditioner!! Leaves my hair soft, smelling amazing, & looking healthy! My “treat yo self” go to conditioner!!
Size: 10.1 Fl Oz (Pack of 1)
Love this extreme length conditioner from Redken. Smells AMAZING, leaves my hair soft & looking healthy. It’s my favorite but it’s a bit pricey (to say the least lol) so it’s definitely a special treat / “treat yo self” situation (especially when it’s on sale!).
Reviewed in the United States on May 10, 2026 Reviewed in the United States on May 10, 2026 by Caroline

  • Great product, heavy perfume
Size: 10.1 Fl Oz (Pack of 1)
Great product, terrible scent. This and the shampoo are very nice: not heavy but very clean coverage. I just like the scent of the kerastas product line so much better.
Reviewed in the United States on March 29, 2026 by Tennis Girl

  • Hair is so soft!
Size: 10.1 Fl Oz (Pack of 1)
Amazing!! Was nervous due to pricing! But let me tell you I’m hooked now! Just started using it this week! Can’t wait for the results . My hair is so soft and feels stronger after the many bleach rounds! Isn’t frizzy like normally with changing hair products
Reviewed in the United States on May 13, 2026 by Kasey sanchez

  • So Thankful that this product ACTUALLY WORKS! So Thankful that this product ACTUALLY WORKS!
Size: 10.1 Fl Oz (Pack of 1)
I have experienced a noticeable change in hair shedding and loss since purchasing the entire system via Amazon. My hair used to cover my shower and clog the drain AND still comb out a clumps with little breakages and shedding every time I styled. I am used to having thick hair and so this was the norm for me - about 1 1/2 cups worth hair loss at hair wash time. Since using Redken hair system, barely 1/4 cups worth or tablespoon worth of hair loss even when combing my hair post shower. I am a new regular consumer of this hair system. I am so thankful for this product. I am actually outgrowing my hair extensions lol and I want LONGER ones, now that my hair is actually growing past my shoulders - when from two pack of hair extensions to 1pack just to supplement my unevenness from when my ponytail was breaking my hair in a specific area. That area has grown about 4 inches but hasn’t caught up to the rest of my head yet. 🙌🏽✨🥰 Also, my previous shampoo and conditioners are Paul Mitchell - Awapuhi. So it’s not the price that matters, it’s what is IN this hair care system. I was hesitant because of the price and the amount of product. I wash my hair about once per week. Hair has grown approximately 2-4 inches and noticeable in a month the difference. I hope this review helps and makes sense - I rarely leave reviews, but I am so happy with this product, that I made the time! Picture is for reference of the smaller amount of hair loss. ... show more
Reviewed in the United States on December 20, 2025 Reviewed in the United States on December 20, 2025 by MammaMia aka Blue Berry 🥴

  • Works but you will have hair loss
Size: 10.1 Fl Oz (Pack of 1)
I bought both the shampoo and conditioner in the beginning November . It smelled really good and my hair felt so nice for the first 2 months , 3rd month in I started to notice growth , A little dry to my scalp and hair but smooth . I used these once/twice a week so I wasn’t over doing it . End of 3rd month and 4 month in i started noting hair loss more and more after each use that I ended up not finishing the bottle. Smell was good but it a drying shampoo to my scalp and hair and it did grow my hair 2-3 inches in 4 months but I experienced some hair loss . Maybe only use this a couple times a month or maybe it’s just not made for my hair type (2b hair ) . ... show more
Reviewed in the United States on March 7, 2025 by Dreams of Things

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