Extreme Length Leave-In Conditioner for Hair Growth

Extreme Length Leave-In Conditioner for Hair Growth is rated 4.6 out of 5 by 267.
  • y_2026, m_7, d_26, h_9
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.48
  • cp_8, bvpage2n
  • co_hasreviews, tv_45, tr_222
  • loc_en_US, sid_redken-extreme-length-split-end-leave-in, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_saloncentric
  • bvseo_sdk, dw_cartridge, 17.1.0, p_sdk_3.2.0
  • CLOUD, getAggregateRating, 42ms
  • reviews, product
Select Size
Available options to select
5.1 oz.
#P2031501
Auto Replenish:
FREE SHIPPING OVER $50 & EARN 100 PROREWARDS POINTS
  • Choose your frequency. Skip or cancel anytime.
  • Free shipping over $50* & 100 ProRewards Points++ on all recurring orders.
  • Select auto-delivery in cart.
  • Exclusions apply.
Learn More

What It Is

A leave-in treatment with Redken's Length Care Complex featuring Biotin that strengthens damaged hair to help it grow longer and stronger.

What It Does

• Helps prevent breakage so hair keeps growing longer.

• Visibily reduces the appearance of split ends by 78%.

• Strengthens and seals weak fragile hair.

What Else You Need to Know

Extreme Length is made with Redken's Length Care Complex featuring Biotin to help hair grow longer and stronger. Get 81% less breakage using the 3 step system to support hair growth.

Apply to clean, damp, towel-dried hair. Leave-in. Style as desired. Use as a complete system with Extreme Length Shampoo and Extreme Length Conditioner with Biotin.

AQUA / WATER / EAUAMODIMETHICONECETEARYL ALCOHOLTRIDECETH-5POLYQUATERNIUM-37PHENOXYETHANOLPROPYLENE GLYCOL DICAPRYLATE/DICAPRATESTEARETH-20PARFUM / FRAGRANCESODIUM HYDROXIDECITRIC ACIDGLYCERINPHENYL TRIMETHICONECETYL HYDROXYETHYLCELLULOSETRIDECETH-10PPG-1 TRIDECETH-6CETYL ALCOHOLPRUNUS AMYGDALUS DULCIS OIL / SWEET ALMOND OILBIOTINPOLYQUATERNIUM-67ARGININEBEHENTRIMONIUM METHOSULFATECHLORHEXIDINE DIGLUCONATEQUATERNIUM-33SORBITAN OLEATEACETIC ACIDBENZYL BENZOATE2-OLEAMIDO-1 3-OCTADECANEDIOLHYDROLYZED SOY PROTEINLIMONENEBENZYL ALCOHOLLINALOOLSILICA DIMETHYL SILYLATEHYDRATED SILICAPOLYSORBATE 60HYDROLYZED VEGETABLE PROTEIN PG-PROPYL SILANETRIOLSODIUM ACETATESODIUM CHLORIDEISOPROPYL ALCOHOLPOTASSIUM SORBATE

Purchases made in SalonCentric stores may be returned to any SalonCentric store. Purchases made through SalonCentric Customer Service, SalonCentric Business Partners, and SalonCentric.com orders Sold and Shipped by SalonCentric may be returned to a SalonCentric store; however, the return must not exceed $450 and must include the original receipt, packing slip, or invoice. For returns in-store of online orders, the refund will be credited back to the original payment method once the return has been processed. For SalonCentric.com Online Exclusive orders sold and shipped by third-party sellers, please see more details linked below for return steps.

The SalonCentric return policy does not currently apply to Kérastase & Shu Uemura purchases. Kérastase & Shu Uemura do not accept returns.

Click to see more details.

Rated 3 out of 5 by from Would of gave it 5 stars but Would of gave it 5 stars if it was also a heat protectant. It does seal in your split ends and leaves hair feeling soft and manageable, but it's to heavy to cocktail in a heat protectant product.
Date published: 2020-03-31
Rated 4 out of 5 by from Don't require a lot It doesn't take a lot, so don't over do it. Smells good. Does a great job of keeping hair smooth. Light weight.
Date published: 2020-03-30
Rated 5 out of 5 by from Great Makes my hair soft and actually helps define my curls. Will use for a long time
Date published: 2020-03-30
Rated 4 out of 5 by from Amazing!! This smells so good! I've used it a number of times and the whole system is seeming to make my hair feel so full and soft and I can't wait to see if it helps my hair grow!
Date published: 2020-03-29
Rated 5 out of 5 by from Great for everyday use I have been using this leave in treatment and I like that I can use it even when it's not wash day! I notice that it really moisturizes my curls and my hair is so soft and shiny. I also noticed it doesn't leave a lot of build up in my hair even with using with my styling products. I also like it for my wash and go styles because it's hydrating and smells amazing.
Date published: 2020-03-29
Rated 4 out of 5 by from Hoping for softness I loved the fragrance, but was hoping for my hair to become softer. It didn't state that would be the outcome, it was just an expectation I had. I would still recommend this line!
Date published: 2020-03-29
Rated 4 out of 5 by from Out of all the products. Out of all 3 products I have tried in this line this one might be my favorite. Definitely feel like it has improved my hair while styling. I would still recommend it to someone with more damage in their hair though.
Date published: 2020-03-29
Rated 3 out of 5 by from So so Like the other 2 they all need to be used on a regular basis to see anything
Date published: 2020-03-29
Rated 4 out of 5 by from Like it, Don't Love it! I love the smell of this product, similar to the rest of the Extreme Line by Redken. The product offers many benefits, but a little goes a long way. I accidentally used too much and it left a huge residue on my hair. It was unbearable and I had to wash it again. However, when using the product properly and with the rest of the system my hair was left with a wonderful shine. I've yet to see the full product benefits because I don't wash my hair frequently, but I am excited to see how well it works through these new few months.
Date published: 2020-03-26
Rated 5 out of 5 by from Leave it in! I love love love any leave in treatment, and this biotin infused line is right up my alley! The smell is great and I felt like it smoothed and helped my dry ends!
Date published: 2020-03-18
Rated 5 out of 5 by from Great smell and soft hair. I love how this made my hair feel! The whole line is awesome. Smells good and it's not overwhelming type of smell either. Made my hair feel healthier after using. Looking forward to seeing how my hair will look and feel in the future.
Date published: 2020-03-17
Rated 5 out of 5 by from Perfect leave in This was the perfect leave in product. I felt like my hair styled better than usual after using this. Excited to see extended results
Date published: 2020-03-17
Rated 5 out of 5 by from Love! Loved the consistency of this leave in treatment. Not too heavy not too light, just perfect!
Date published: 2020-03-17
Rated 5 out of 5 by from love this! This is a great product. It does not weigh your hair down, nice light weight, smells good and makes your hair silky soft. Its a nice light cream.
Date published: 2020-03-13
Rated 5 out of 5 by from Treatment Adding 1 more step concerned me as I have fine hair....... but instead of weighing it down it just adds to the smoothness & shine! I do feel with continued use (loving the biotin) my ends will be stronger which will help with the growth!
Date published: 2020-03-12
Rated 5 out of 5 by from Love it! This product works very well! It makes you feel feel very taken care of and healthy. Even after just a few times using it, I felt like I had better and healthier hair!
Date published: 2020-03-11
Rated 5 out of 5 by from Excellent Love the product and the smell! I would definitely recommend to friends, family and my clients. I'm hoping for this to help my hair grow as well!
Date published: 2020-03-11
Rated 3 out of 5 by from Heavy Smells great, felt great @ 1st but my hair felt a coating on it & it was weighed down. Looked greasy after a few hours & my scalp was itchy
Date published: 2020-03-11
Rated 4 out of 5 by from Hair Good The product works well. The biotin is exciting for the help of hair growth. Product does not feel heavy in my hair or weigh it down. My hair looks great with use of this product.
Date published: 2020-03-10
Rated 4 out of 5 by from Lightweight! It felt really light weight in my hair and smoothed our my rough ends! My hair definitely felt protected while I was heat styling!
Date published: 2020-03-08
Rated 5 out of 5 by from Static defense Redken Extreme Length Leave-In Treatment with Biotin is just the product I needed to help tame static! I applied a small amount of product from the middle down to the tips of my strands. I was pleasantly surprised that it did not detract from volume and still left my hair smooth and static free. I even noticed a bit of a shine which boosts confidence. I highly recommend this product.
Date published: 2020-03-08
Rated 5 out of 5 by from Easy blowout I am so excited about this treatment! It's also light weight, gives a thicker feel to the hair, tamed my frizz, and the hair does feel some what stronger for only one use! I can't wait to see how long my hair will get with the new added biotin.
Date published: 2020-03-08
Rated 5 out of 5 by from awesome!!! Product line smells amazing and works fabulously as well! Can’t keep it on our shelves
Date published: 2020-03-08
Rated 5 out of 5 by from Great stuff!!! I received this product for free in exchange for an honest review. This Redken Extreme Length Leave In treatment smells so good! As soon as I opened it, I loved the smell. I used about a dime size of product and worked it all over my hair and brushed it to distribute the product. It went on nicely and made my hair feel even more soft after using the same shampoo and conditioner. I am excited to see results. I can already tell it made a difference in my hair. Washed it at night and still smelled amazing in the morning. I will definitely be re purchasing this leave in along with it's line. Once my mom and sister smell this I know they too will want to purchase. We all are suckers for good products!
Date published: 2020-03-07
Rated 4 out of 5 by from Decent leave in I paired this with the extreme length shampoo and conditioner. I applied 2 dime size amounts to my damp hair and combed through. Once dry my hair felt a little more dry then with my normal routine. I usually pair and oil with my leave in but wanted to try this line by itself. Next time I will use with my oil. I loved the smell
Date published: 2020-03-07
Rated 5 out of 5 by from So far, so good! Makes hair feel great after using matching shampoo and conditioner!
Date published: 2020-03-07
Rated 4 out of 5 by from Need more time I liked this product. It helped make it easier to comb through my hair. It wasn't heavy so it didn't feel weighed down or anything. On using one time it's difficult to say what longer term effects will be, but it left my hair feeling very nice.
Date published: 2020-03-07
Rated 5 out of 5 by from Best leave-in conditioner!!! Definitely worth the investment!! Your hair will thank you! I used this leave-in treatment following the extreme length shampoo and conditioner and OMG!! I love the light sweet scent to it! I'm very sensitive to fragrances and this line has the perfect amount of scent! Ok so now let's talk hair! I have very dry, limp and weak hair. My hair is chemically damaged, heat damaged and is in need of reconstruction. This leave-in treatment did just that! I feel like my hair isn't my hair! It feels soo smooth, silky, hydrated and healthy! Definitely buying again and recommending! Great job on this product!
Date published: 2020-03-07
Rated 5 out of 5 by from Great protection add on This leaves hair soft & silky while adding protection to growing hair. Also has a great scent!
Date published: 2020-03-07
Rated 4 out of 5 by from Dual Purpose I used the Extreme Length leave-in product in combination with the matching shampoo and conditioner. It has a pleasant, light scent while disbursing through wet hair, but doesn't leave any real noticeable scent in the hair (which I appreciate). It doesn't take much to get the job done. I used about a nickel-sized amount for my below the shoulder length hair. I applied it from my ears and below to the tips as my hair gets greasy easily with most products if i go too near the roots. It was light-weight in the hair. It even helped with brushing out the wet tangles after showering, which is a nice dual purpose. My hair seems stronger and like it can grow longer without breaking off now. It only took one time using this trip and my hair looked and felt healthy and great. I'm pleased with this line and would recommend it for sure. I received this for free in exchange for my honest review.
Date published: 2020-03-06
  • y_2026, m_7, d_26, h_9
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.48
  • cp_8, bvpage2n
  • co_hasreviews, tv_45, tr_222
  • loc_en_US, sid_redken-extreme-length-split-end-leave-in, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_saloncentric
  • bvseo_sdk, dw_cartridge, 17.1.0, p_sdk_3.2.0
  • CLOUD, getReviews, 8ms
  • reviews, product