

🌿 Unlock your hair’s full potential with every drop!
Redken Extreme Length Leave-In Treatment is a biotin and soy protein-enriched formula designed to strengthen damaged hair, seal split ends, and prevent breakage. Featuring Redken’s Strength and Length Care Complex, it smooths the cuticle, reduces friction, and supports longer, healthier hair growth—all while being Cradle to Cradle Certified for sustainable beauty.


















| ASIN | B086L3RLVM |
| Best Sellers Rank | #7,923 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #185 in Hair Conditioner |
| Customer Reviews | 4.6 4.6 out of 5 stars (5,245) |
| Is Discontinued By Manufacturer | No |
| Item model number | P18507 |
| Manufacturer | Redken |
| Product Dimensions | 2.37 x 1.53 x 7.66 inches; 5.6 ounces |
| UPC | 884486456205 000030160293 |
E**Y
LOVE IT!
I've been trying to go the natural hair routine for 2 years since it seemed my hair has been struggling with length. I finally saw this product nd thought "why not" since seeking to find what is best for me has been a journey for all aspects of myself. Just to let you know I only use this product once a week. I will explain: My shower routine is that I exfoliate my scalp with a salt scrub, wash with shampoo and them use the REDKEN mask and message it into my scalp for the instructed time and then rinse off with cold water. Then I used the REDKEN leave on conditioner and let my hair air dry....and I would say these two products had made my hair feel more healthy then the all natural hair routine I've been using. Yes, maybe all natural works for some, but these two additions to my hair routine had relieved my hair of past issues ive been struggling with. It was always dry, and flaky the next day or when hours after a wash and I was trying to do less hair washes, but it was difficult due to how embarrassingly flaky and oily my hair got after one day. Adding the REDKEN Extreme Length Mask and leave in conditioner to my routine had allowed my hair to last a week till it showed signs of oiliness and flaking which lead me to believe I didn't have dandruff but my scalp was just overly dry from these so called natural hair products. REDKEN had helped in maintaining the moisture in my hair which helped my scalp from over producing oils that ended up making it look so greasy looking and flaky. I only use it once a week and in that week my hair feels silky, soft and healthy I feel like a model flipping my hair around its ridiculous! I have only used this product twice, as I said I've been only using it once a week. so I can't really say if it had helped my hair with growing more length. but i had done my share of research that states that when issues with hair not growing past a certain length it could be due to hair damage (or split end) causing the hair to break not along it to lengthen. If these products can maintain the moisture in my hair for a week, then I would confidently say that if I continue to use these products my hair strans will grow more stronger and hydrated that my ends will not be so easily broken. This is my theory after all on how this product line is intended to work. I will update this review if that is the case!
H**I
Requirement In My General Hair Care Routine
Let me start with: I’m a big fan of Redken products. 35/F, my hair is 2.5ft long, and I’ve had long hair the majority of my life. This Extreme Length Leave-in is a godsend. I tried it a little over a year ago and it’s now part of my general hair care routine. After towel drying and combing my hair, I add this to the lengths of my hair, roughly my ears down to the ends, but definitely caring for the ends the most. It’s lightweight enough to not be heavy while adding adequate moisture, and tames any shredded dead ends. No added shine (though Redken does make a good shine spray, but that’s for another review ;) ) Redken can be a bit expensive but they provide a very good product. I have this particular one on subscription because it’s a better value to just have it show up on schedule (with the ability to adjust arrival) than having to order or go to Ulta. The price for Sub&Save is helpful too.
B**A
One of my go-to’s when I feel like my hair needs a reset.
Holy grail! I love this product, excellent for breakage-prone/brittle ends. As a blonde I use it almost every day.
D**O
💋
Good 👌🏻👌🏻
B**A
⭐⭐⭐⭐ Before & After (2 months)
I’ve tried so many leave-in conditioners for my curls, but this Redken one is hands down a favorite in my daily curl combo. From the first use, my hair felt softer, more defined, and way easier to detangle. No crunchiness or greasy residue—just bouncy, moisturized curls/waves that actually behave! (Minus frizz.. I live in Florida, HUMIDTY ) It has a light, pleasant scent that isn’t overpowering, and a little goes a long way. I use it right after washing while my hair’s still damp. Pros: - Hydrates and softens curls - Defines without weighing down - Light, fresh scent - Great for detangling - Doesn’t leave buildup Cons: – A bit pricey, but worth it for the results – Not Frizz Free If you’ve got curls that need some extra love, this is absolutely worth a try. Redken nailed it!
C**B
Soft and light
This leave in is very good. It makes your hair soft without a bunch of residue. I put it in concentrating on the ends of the hair and I have noticed I have fewer spit ends. I have not noticed it helping my hair grow however, but that was not my main concern. It does not make the hair greasy and it keeps it shiny and easy to manage
J**B
Great
I have 4b-4c hair and it genuinely made my hair feel so soft, idk about the length results yet but i can say it makes the hair extremely soft and moisturized, Wish there was a larger bottle — Its not greasy, feels water based
A**Y
Get it
So good for damaged brittle hair! Really helped my reduce hair breakage from bleaching
B**N
Looks just like in the picture. Put it in my hair right away once it came and can see the difference on my ends right away
L**Y
A mí me ha salvado el pelo, ya que lo protege del calor y evita que las puntas se rompan tanto. Vario entre este y el otro azul oscuro, pero siempre lo tengo en casa y me lo pongo después de lavarme lo, justo antes de comenzar el secado.
C**N
Parfait Super produit
M**A
Massera denna med en hårbotten massör, sjukt lugnande och kall känsla. Super fräsch!
S**C
I bought this three months ago and still have plenty left. It’s really helped my hair improving its overall health and even supporting growth. It works just as advertised. Since I started using Redken products, my hair feels noticeably better. I also installed a showerhead to reduce hard water, and I use both the shampoo and conditioner as part of my routine.
Trustpilot
1 month ago
2 months ago