Redken Extreme Length Shampoo — 33.8 fl oz biotin-enriched strengthening shampoo for fragile, breakage-prone hair

Redken Extreme Length Shampoo is a biotin-enriched strengthening shampoo formulated to gently cleanse while fortifying fragile, breakage-prone hair so it can grow longer.

If you struggle with hair that snaps or won’t seem to grow past a certain length, this salon-formulated shampoo targets weakness along the strand and at the root. The formula combines Redken’s Length Care Complex with biotin to help improve resilience, reduce the appearance of split ends, and support healthier-looking length when used regularly as part of the Extreme Length system.

How does this shampoo help hair grow longer?

The shampoo focuses on strengthening the hair fiber to reduce breakage, which lets hair retain length instead of breaking off. It cleanses without stripping, so the hair cuticle remains smoother and less prone to splitting.

• Biotin-enriched formula to fortify weakened strands
• Length Care Complex targets root-to-tip strength
• Gentle cleansing preserves natural moisture and elasticity

Will it reduce split ends and visible damage?

Regular use helps minimize the look of split ends by strengthening the mid-lengths and ends, making damage less noticeable. For best results, pair it with the Extreme Length Conditioner and Leave-In Treatment to seal and protect the tips.

• Strengthening ingredients help decrease split-end appearance
• Use with matching conditioner and sealer for enhanced protection
• Formulated for fragile, chemically treated, or heat-styled hair

How should I use this product in my hair routine?

Apply to wet hair, work into a rich lather, then rinse thoroughly. Follow with Extreme Length Conditioner and, if needed, the Leave-In Treatment or Sealer to lock in benefits and target ends more directly.

• Use every time you shampoo for consistent strengthening effects
• Pair with the brand’s conditioner and leave-in for a full system approach
• Safe for all hair types and textures that are fragile or prone to breakage

Is this safe for colored or chemically treated hair?

The formulation is designed to be compatible with a wide range of hair types, including color- and chemically treated hair. It gently cleanses while addressing breakage, making it suitable for maintaining length after salon services.

• Gentle enough for color-treated strands when used as directed
• Helps improve hair resilience after chemical or heat styling stress
• Works on straight, wavy, curly, and coily textures

Who is this for: Redken Extreme Length Shampoo is aimed at anyone whose hair is fragile, frequently breaks, or fails to retain length — including those with heat or color damage, frequent styling, or naturally fine strands. If your goal is to support longer, stronger hair without heavy buildup, this 33.8 fl oz professional-sized bottle provides daily-strengthening care when used as part of Redken's Extreme Length regimen.

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>