Use the following zoom and pan buttons to control the image that follows them
Tab through the images or use the previous or next buttons to navigate each product image
Highlights
Summary
Redken Extreme Length Leave-In Conditioner with Biotin helps strengthen damaged hair to grow longer and stronger. This leave-in conditioner helps prevent breakage and helps healthy hair growth.
Benefits
- Strengthens damaged hair to grow longer and stronger
- Helps prevent breakage so your hair can continue to grow longer
- Reduces breakage
- Visibly reduces the appearance of split ends
- Strengthens weak, fragile hair
- Adds manageability, smoothness and shine
- Reduces breakage by 81%*
- Visibly reduces the appearance of split ends by 78%*
- *When using the full Extreme Length system (shampoo, conditioner & treatment)
Key Ingredients
- Redken's Length Care Complex featuring biotin and soy protein
Item 2580472
Apply to clean, damp, towel-dried hair. Leave-in. Style as desired.
Aqua/Water/Eau, Amodimethicone, Cetearyl Alcohol, Trideceth-5, Polyquaternium-37, Phenoxyethanol, Propylene Glycol Dicaprylate/Dicaprate, Steareth-20, Parfum/Fragrance, Sodium Hydroxide, Citric Acid, Glycerin, Phenyl Trimethicone, Cetyl Hydroxyethylcellulose, Trideceth-10, Ppg-1 Trideceth-6, Cetyl Alcohol, Prunus Amygdalus Dulcis Oil/Sweet Almond Oil, Biotin, Polyquaternium-67, Arginine, Behentrimonium Methosulfate, Chlorhexidine Digluconate, Quaternium-33, Sorbitan Oleate, Acetic Acid, Benzyl Benzoate, 2-Oleamido-1,3-Octadecanediol, Hydrolyzed Soy Protein, Limonene, Benzyl Alcohol, Linalool, Silica Dimethyl Silylate, Hydrated Silica, Polysorbate 60, Hydrolyzed Vegetable Protein PG-Propyl Silanetriol, Sodium Acetate, Sodium Chloride, Isopropyl Alcohol, Potassium Sorbate.
We think you'll like
12 items
Use previous and next buttons to navigate the slides of the We think you'll like Product Carousel
Sponsored products
12 items
Use previous and next buttons to navigate the slides of the Sponsored products Product Carousel
Questions
Ask a QuestionQ&A
Showing 5 out of 52 Questions
- Q
Do I need to use the shampoo and conditioner for this to work too?
- Asked by Remi
- Official Answer By Redken - BEHi there! Thank you for your interest in our Extreme Length Leave-In Conditioner. This product can be used on its own if you'd prefer. The maximum benefits and all of our claims are based on using each product line as a complete system. For best results, we recommend using the Extreme Length Shampoo, Conditioner, and Leave-In Conditioner as a complete system. We hope this information helps!Was this answer helpful to you
- Q
Is this a hydrating leave in conditioner as well as strengthening?
- Asked by Vicky
- Official Answer By Redken - BEHi there! We appreciate your interest in our Extreme Length Leave-In Conditioner. This product helps strengthen damaged hair to grow longer and stronger. This leave-in conditioner adds manageability, smoothness and shine, helps prevent breakage and helps healthy hair growth, and visibly reduces the appearance of split ends. If you prefer a product that adds moisture, you can check out our All Soft Moisture Restore Leave-In Treatment here: https://tinyurl.com/yl4e5joa. We hope this helps!Was this answer helpful to you
- Q
am i allowed to put this leave in conditioner in my hair after the shower?
- Asked by anna
- Official Answer By Redken - BEHi there! We appreciate your interest in our Extreme Length Leave-In Conditioner. It is formulated with Biotin and Soy Protein to help fortify lengths to reduce breakage, allowing hair to lengthen when used as a system. Apply to clean, damp, towel-dried hair. Leave-in and style as desired.Was this answer helpful to you
- Q
I usually straighten my hair blow dry then straighten when do i use this? do i use the heat protectant before or after this?
- Asked by Heat queen
- Official Answer By Redken - BEHi there! Thank you for reaching out about our Redken Extreme Length Leave-In Conditioner. When you're using the Redken Extreme Length Leave-In Conditioner with your blow-drying and straightening routine, here's the best way to apply it: You should use the Redken Extreme Length Leave-In Conditioner before you blow-dry your hair, on damp, towel-dried strands. It helps to detangle, strengthen, and prepare your hair for styling. Regarding heat protectant: If your Redken Extreme Length Leave-In Conditioner provides sufficient heat protection (check the product details), you might not need an additional product. If you're using a separate heat protectant, apply it after the leave-in conditioner and before you begin blow-drying or straightening. So, the order is: Leave-in on damp hair > Heat Protectant (if separate) > Blow Dry > Straighten.Was this answer helpful to you
- Q
I typically use a spray leave-in as a detangler. Should I use this product or the Anti-Snap leave-in or both together?
- Asked by Melanie
- Official Answer By Redken - BEHi there! Thank you for reaching out about our Redken Extreme Length Leave-In Conditioner. For detangling, our Redken Anti-Snap Leave-In is a great choice as it's specifically formulated to help reduce breakage and aid in detangling. Our Redken Extreme Length Leave-In Conditioner primarily focuses on strengthening and promoting length, though its smoothing benefits will also help with detangling. You can use Anti-Snap for direct detangling and breakage protection. If you also seek significant length benefits and intense strengthening, you can use Extreme Length as well, but always observe how your hair responds to avoid product buildup.Was this answer helpful to you
Reviews
Write A REVIEWReview Snapshot
by PowerReviews
Ratings Distribution
Best Uses
Describe Yourself
Hair Type
Most Helpful Positive Review
Yes! Please!
First and foremost, I love the scent of the shampoo! It's a cotton candy-ish smell, but not overwhelmingly powerful. It lingers forever, I've never gotten so many compliments on how great my hair smells!! I have waist length, thick THICK, wavy/curly hair. It's pretty coarse, hard to comb through, a...
Most Helpful Critical Review
Tames frizz (I think)
I received this product to try for free in exchange for sharing my opinion about it. I have fine hair that lacks volume, as well as certain pieces that don't really seem to be growing at all, so I was very excited to try out this product line. For two weeks, I used this leave-in treatment in conjunc...
279 results
Great leave in product
Verified Reviewer
Submitted as part of a free sample program
Reviewed at

I style my hair everytime I wash it, so I always reach for a leave in treatment to protect my hair. This one made it shiny and smooth. I will keep using it to see if it reduces breakage.
Long, strong hair
Verified Reviewer
Submitted as part of a free sample program
Reviewed at

Here are some of the things that I love about Redken Extreme Length Sealer Leave-In Treatment: It is formulated with biotin, which helps to strengthen and repair damaged hair. It is lightweight and non-greasy, so it does not weigh my hair down. It leaves my hair feeling soft, smooth, and shiny. It helps to reduce frizz and flyaways. It protects my hair from heat styling damage. It is easy to find and affordable. If you are looking for a leave-in treatment that will help you achieve long, healthy hair, I highly recommend Redken Extreme Length Sealer Leave-In Treatment. It is the best leave-in treatment that I have ever used, and I am so glad that I found it.
New to me, but good!
Verified Reviewer
Submitted as part of a free sample program
Reviewed at

I have never used a leave in product prior to this one. It was received as a sample for a review, and I am pleased to report that it has truly helped my hair! I am a simplistic type of hair styler, so I don't think I will be using it in the future, but I do enjoy it now. The added time is a deterrent for me.
Grow Baby Grow
Verified Reviewer
Submitted as part of a free sample program
Reviewed at

I've never used a leave-in treatment before in my hair. This was a fun product to try and I love the results from it. I feel by leaving it in it did make my hair feel softer than normal and shinier after I wash them dried my hair. And I feel like my hair has been given new length making it not dull and helping with breakage in my hair.
Best of the best!
Verified Reviewer
Submitted as part of a free sample program
Reviewed at

If you are ever worried about about the health of your hair, this is perfect. It helped to strengthen my hair and it keeps it healthy and soft. The scent is a awesome.