Redken Extreme Length Shampoo for Damaged Hair, 33.8 fl oz — Biotin Strengthening, Breakage-Reducing

Redken Extreme Length Shampoo is a biotin-infused strengthening shampoo that gently cleanses while helping reduce breakage and support longer, healthier-looking hair.

Formulated by professional brand Redken, this full-size 33.8 fl oz bottle is designed for hair that struggles to grow due to fragility, damage, or frequent breakage. The formula combines biotin with Redken's Length Care Complex to help reinforce strands from root to tip. Used as part of the Extreme Length regimen (shampoo, conditioner, and sealer), it aims to support longer lengths and minimize the visual appearance of split ends without harsh stripping.

How does this shampoo help hair grow longer?

The shampoo targets weakened areas along the hair shaft so strands are less likely to snap as they lengthen. Instead of stimulating biological growth, it focuses on strengthening and protecting existing hairs so you can retain length over time. For best results, pair with the matching conditioner and leave-in sealer.

• Biotin-enriched formula designed to fortify fragile hair
• Length Care Complex helps reinforce strands from root to tip
• Gentle surfactants cleanse without over-drying
• System use reduces the visible look of split ends

Will it reduce breakage and split ends?

Yes — the formula is specifically created to reduce hair breakage and improve the appearance of split ends when used as part of the Extreme Length system. It helps strengthen the hair fiber so strands resist snapping, and it smooths and seals damaged ends to reduce their visibility. Results depend on hair condition and consistent use.

• Helps minimize breakage with fortified hair fibers
• Reduces the visible appearance of split ends when paired with conditioner and sealer
• Supports 81% less breakage and visibly reduced split ends in system testing*
• Suitable for repeated, regular use to maintain improved strength

Is this shampoo suitable for my hair type and styling routine?

Redken Extreme Length Shampoo is formulated for a wide range of hair types and textures, especially those that are fragile, damaged, or prone to breakage. It works well with color-treated and chemically processed hair when used as directed, and it won’t interfere with most styling products. If you have specific scalp conditions, consult a professional before introducing new products.

• Formulated for all hair types, especially fragile or damaged hair
• Compatible with color-treated and chemically processed hair
• Gentle cleansing suitable for frequent washing routines
• Integrates easily with styling products and treatments

How should I use it for best results?

Start with wet hair, lather a small amount into scalp and lengths, then rinse thoroughly. Follow with Redken Extreme Length Conditioner and use the Leave-In Treatment or Sealer to protect ends and lock in strength. Consistent use as a complete system yields the most noticeable improvement in breakage resistance and the look of split ends.

• Wet hair, apply, lather, and rinse thoroughly
• Follow with Extreme Length Conditioner and Leave-In Sealer
• Use regularly for cumulative strengthening effects
• Combine with gentle brushing and protective styling for best retention

Who is this for: Redken Extreme Length Shampoo is ideal for anyone whose hair is fragile, damaged, or repeatedly breaking before it reaches desired length. It’s especially useful for people aiming to grow longer hair while minimizing visible split ends, those who frequently color or chemically treat hair, and users who prefer salon-quality, science-driven formulas from a professional brand. If your main goal is to strengthen and protect strands to retain length, this shampoo can be an effective part of that routine.

Ingredients

AQUA / WATER / EAU</div><div>SODIUM LAURETH SULFATE</div><div>SODIUM CHLORIDE</div><div>COCAMIDOPROPYL BETAINE</div><div>CITRIC ACID</div><div>SODIUM HYDROXIDE</div><div>PARFUM / FRAGRANCE</div><div>PROPYLENE GLYCOL</div><div>POLYQUATERNIUM-10</div><div>SODIUM BENZOATE</div><div>HEXYLENE GLYCOL</div><div>SALICYLIC ACID</div><div>BENZYL BENZOATE</div><div>LIMONENE</div><div>BENZYL ALCOHOL</div><div>LINALOOL</div><div>2-OLEAMIDO-1,3-OCTADECANEDIOL</div><div>BIOTIN</div>