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Redken Extreme Length Biotin Leave-In Conditioner is a vegan, dye-free, salon-quality treatment infused with biotin and soy protein. Designed to strengthen damaged hair, reduce breakage by up to 81%, and seal split ends, it promotes longer, healthier hair with enhanced shine and manageability. Trusted by professionals and loved by over 5,400 users, this 5.1 fl oz formula delivers deep hydration and resilience for visibly stronger strands.

















| ASIN | B086L3RLVM |
| Active Ingredients | soy |
| Additional Features | Biotin and soy protein infused leave in treatment that helps hair growth for damaged hair |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #10,694 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #240 in Hair Conditioner |
| Brand | Redken |
| Brand Name | Redken |
| Customer Reviews | 4.6 out of 5 stars 5,400 Reviews |
| Global Trade Identification Number | 00884486456205 |
| Hair Conditioner Type | Leave-In Hair Conditioner |
| Hair Type | Damaged |
| Item Dimensions | 2.37 x 1.53 x 7.66 inches |
| Item Form | Liquid |
| Item Weight | 5.6 Ounces |
| Liquid Volume | 150 Milliliters |
| Manufacturer | Redken |
| Manufacturer Part Number | P1850700 |
| Material Feature | Vegan |
| Material Features | Vegan |
| Material Type Free | Dye Free |
| Model Number | P18507 |
| Number of Items | 1 |
| Package Type Name | Bottle |
| Product Benefits | Biotin and soy protein infused leave in conditioner that helps hair growth for damaged hair |
| Recommended Uses For Product | salon;spa |
| Scent Name | Floral |
| Size | 5.1 Fl Oz (Pack of 1) |
| UPC | 884486456205 000030160293 |
| Unit Count | 5.1 Fluid Ounces |
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!
D**E
Leave in conditioner
Love this leave in have long hair and helps ends keeps ends healthy no split ends
V**.
Great Leave In Conditioner
Absolutely another amazing product that I use in my hair. Wash, Towel dry, apply comb through and go. No bells and whistles and my hair feels soft, smooth, and amazing all day, I am one to have curly, frizzy chaotic hair. This is a game changer. Noticing that my hair is getting thicker as well. I will continue to use this product.
S**A
Definitely helps with thick hair.
I have been trying to grow out my thick/frizzy/wavy-curly (depending on the weather) hair. Eons ago, I was dumb and cut my hair that was down to about my waist after college when I got a "professional" job. Big mistake. Anyways, been trying to grow it back out past my lower shoulders for years. So this came along at the same time as the pandemic. I wanted something to moisturize my hair without being heavy but also help with growth and general health of roots, etc. Fast forward, my hair is down to my waist. Key to this is, use products like this AND stop using the blow dryer to (like me) to straighten your hair. This stuff lasts a long time so don't let the small container fool you. You don't need a lot. Just take a little blob, rub it in your hands and spread it through your hair. Let it sit, and if you need to blow dry, just do a little bit at the roots. I would recommend those with long hair...flip your your hair over and blow dry bending over...just the roots though. As I mentioned before...you don't need a lot. I bought my first about 2+ years ago and I just recently ran out. Oh, another thing. If you are trying to grow your hair long and your hair is not too oily. forgo the daily washing. Go every other day or every 2-3 days so you don't strip your hair of the natural hair oils that protect it.
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!
T**A
Great product
Great quality product and helps keep hair strong and less split ends.
A**R
Makes your hair feel amazing
Absolutely love this leave in conditioner! I have thin hair and usually after washing it’s all knotted up! Using this leave in product is amazing!!!
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.
A**A
Excelente línea de redken
Excelente acondicionador, por el precio esperas que haga maravillas y las hace. También huele caro (porque es caro) pero tanto el olor y efecto perdura y se nota más con el uso, por lo menos en mi cabello poroso y tratado, considero que ya no se troza tan fácilmente.
B**N
It came so fast
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
Evita daños en el pelo
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.
M**A
Isande hårbotten
Massera denna med en hårbotten massör, sjukt lugnande och kall känsla. Super fräsch!
S**C
Does the job!
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
2 weeks ago
3 weeks ago