---
product_id: 201127239
title: "Redken Extreme Length Leave-In Treatment For Hair Growth - Seals Split Ends & Prevents Breakage, Infused With Biotin"
brand: "redken"
price: "$77.75"
currency: USD
in_stock: true
category: "Redken"
url: https://www.desertcart.us/products/201127239-redken-extreme-length-leave-in-treatment-for-hair-growth-seals
store_origin: US
region: United States of America
---

# 78% fewer visible split ends Biotin & soy protein boost growth 81% less breakage Redken Extreme Length Leave-In Treatment For Hair Growth - Seals Split Ends & Prevents Breakage, Infused With Biotin

**Brand:** redken
**Price:** $77.75
**Availability:** ✅ In Stock

## Summary

> 🌿 Unlock your hair’s full potential — stronger, longer, unstoppable!

## Quick Answers

- **What is this?** Redken Extreme Length Leave-In Treatment For Hair Growth - Seals Split Ends & Prevents Breakage, Infused With Biotin by redken
- **How much does it cost?** $77.75 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/201127239-redken-extreme-length-leave-in-treatment-for-hair-growth-seals)

## Best For

- redken enthusiasts

## Why This Product

- Trusted redken brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Breakage Defense:** Clinically proven to reduce hair breakage by 81%, keeping your hair intact and thriving.
- • **Salon-Grade Care:** Vegan, dye-free formula trusted by professionals to hydrate, restore, and protect damaged hair.
- • **Split End Savior:** Seals and repairs split ends with 78% less visible damage for a flawless finish.
- • **Strengthen & Grow:** Infused with biotin and soy protein to fortify fragile hair and promote longer, stronger strands.
- • **Smooth & Manageable:** Gently smoothes the hair cuticle, reducing friction and enhancing shine and softness.

## Overview

Redken Extreme Length Leave-In Treatment is a salon-quality, biotin and soy protein-infused formula designed to strengthen damaged hair, reduce breakage by 81%, and visibly minimize split ends by 78%. This vegan, dye-free leave-in conditioner smoothes the hair cuticle, enhances manageability, and supports healthy hair growth for resilient, shiny locks.

## Description

Product Description Redken Extreme Length Leave In Conditioner with Redken's Length Care Complex made with Biotin and Soy Protein helps hair growth by strengthening damaged hair to grow longer and stronger. Extreme Length Leave In Conditioner also helps prevent breakage so your hair can keep growing longer. 81% less breakage when using the full Extreme Length system (shampoo, conditioner & treatment) 78% less visible split ends - Formulated with biotin and soy protein - Strengthens weak, fragile hair - Adds manageability, smoothness and shine. Brand Story Redken is the #1 professional brand in North America. Powered by science, prescribed by professionals, Redken creates products with the highest quality ingredients, delivering powerful hair transformations for all hair types.

## Features

- Redken Extreme Length Sealer Leave-In Treatment gently smoothes the hair cuticle to help prevent hair breakage and fortify damaged hair. Formulated with Redken's Strength Complex and acts as a deep conditioner.
- Leaves hair healthy, shiny and resilient. Reduces friction from brushing and preventing further damage. Contains Biotin and Soy Protein to strengthen strands and repair split ends.
- Fortifying deep conditioner for dry damaged hair treats the root, core and tip of the hair. Extreme Length Conditioner is formulated with Redken's Length Care Complex. Supports hair growth.
- Strengthens damaged hair, leaving it healthy and resilient. Manages and treats damaged hair. Hydrates, strengthens, and restores damaged hair. Prevents future hair breakage and reduces split ends.
- Formulated with Redken's Length Care Complex, which contains biotin and soy protein to help strengthen damaged, weak, and fragile hair. Helps hair grow longer and stronger. Adds manageability, smoothness and shine.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B086L3RLVM |
| 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 |
| Best Sellers Rank | #11,383 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #254 in Hair Conditioner |
| Brand Name | Redken |
| Customer Reviews | 4.6 4.6 out of 5 stars (5,462) |
| 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 |
| Item model number  | P18507 |
| Liquid Volume | 150 ml |
| Manufacturer | Redken |
| Manufacturer  | Redken |
| Manufacturer Part Number | P1850700 |
| 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 |
| Product Dimensions  | 2.37 x 1.53 x 7.66 inches; 5.6 ounces |
| Recommended Uses For Product | salon;spa |
| Scent Name | Floral |
| Size | 5.1 Fl Oz (Pack of 1) |
| UPC | 884486456205 000030160293 |
| UPC  | 884486456205 000030160293 |
| Unit Count | 5.1 Fluid Ounces |

## Product Details

- **Brand:** Redken
- **Hair Type:** Damaged
- **Item Form:** Liquid
- **Material Feature:** Vegan
- **Product Benefits:** Biotin and soy protein infused leave in conditioner that helps hair growth for damaged hair

## Images

![Redken Extreme Length Leave-In Treatment For Hair Growth - Seals Split Ends & Prevents Breakage, Infused With Biotin - Image 1](https://m.media-amazon.com/images/I/61ZUKmEgvZL.jpg)
![Redken Extreme Length Leave-In Treatment For Hair Growth - Seals Split Ends & Prevents Breakage, Infused With Biotin - Image 2](https://m.media-amazon.com/images/I/81GBm5fAb+L.jpg)
![Redken Extreme Length Leave-In Treatment For Hair Growth - Seals Split Ends & Prevents Breakage, Infused With Biotin - Image 3](https://m.media-amazon.com/images/I/71wDHiUTYYL.jpg)
![Redken Extreme Length Leave-In Treatment For Hair Growth - Seals Split Ends & Prevents Breakage, Infused With Biotin - Image 4](https://m.media-amazon.com/images/I/71lqF5AKB9L.jpg)
![Redken Extreme Length Leave-In Treatment For Hair Growth - Seals Split Ends & Prevents Breakage, Infused With Biotin - Image 5](https://m.media-amazon.com/images/I/71gyEasPrbL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Who is the Extreme Length System for?**
A: The Extreme Length System is suitable for all hair types, but especially those who wish to focus on length retention. The formula focuses on strengthening hair to prevent breakage for longer-looking hair.

**Q: What is included in the Extreme Length System Shampoo and Conditioner formula?**
A: The Shampoo and Conditioner are formulated using advanced pH Science formulas, with 1% Length Care Complex including Biotin and Castor Oil.

**Q: Does the Extreme Length System help with hair growth?**
A: Extreme Length regimen, infused with Biotin and our Length Care Complex, promotes longer, healthy-looking, strong hair. This system reduces breakage by 92%, allowing hair to reach its maximum length. It does not help grow new hair.

**Q: What is the fragrance of the Extreme Length System?**
A: Top: Strawberry, Cassis, Rhubarb. Mid: Jasmine, Peony, Violet, Muguet, Blackcurrant. Bottom: Raspberry, Vanilla, Sandalwood.

## Frequently Bought Together

- Redken Extreme Length Leave-In Treatment For Hair Growth - Seals Split Ends & Prevents Breakage, Infused With Biotin
- Redken Extreme Length Conditioner For Damaged Hair - Fortifies, Strengthens and Conditions Hair, Infused With Biotin & Castor Oil For Hair Growth
- Redken Extreme Length Shampoo For Damaged Hair - Prevents Breakage and Strengthens Hair, Infused With Biotin For Hair Growth

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-13*