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

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

Designed by the professional haircare brand Redken, this 33.8 fl oz shampoo combines gentle cleansing with a strengthening formula to address fragile, breakage-prone hair. Formulated with biotin and Redken’s Length Care Complex, it targets weak spots along the fiber to fortify strands from root to tip and help reduce the visible appearance of split ends when used as part of the full Extreme Length system.

How does this shampoo help hair grow longer?

The formula focuses on strengthening existing hair so strands are less likely to snap, which helps preserve length over time. Consistent use as part of the Extreme Length system supports healthier-looking growth by fortifying the hair fiber.

• Biotin-infused to reinforce weakened hairs and reduce breakage.
• Length Care Complex helps strengthen from root to tip.
• Large 33.8 fl oz size for longer-lasting use between purchases.

Will this reduce split ends and visible damage?

The shampoo is formulated to improve the appearance of damaged ends by strengthening strands and helping them resist further breakage. When paired with the matching Conditioner and Leave-in Sealer, users report a measurable reduction in the look of split ends.

• Helps reduce the visible look of split ends by reinforcing fragile lengths.
• Works best as a three-step routine: shampoo, conditioner, and leave-in treatment.
• Gentle cleansing action preserves moisture while treating damage.

Is it suitable for my hair type and daily use?

Redken Extreme Length Shampoo is formulated to be safe for all hair types, with particular benefit for hair that is fragile, chemically treated, or prone to breakage. The gentle yet strengthening formula makes it appropriate for regular use, depending on individual scalp and styling needs.

• Recommended for fragile, damaged, or breakage-prone hair types.
• Safe for color-treated hair when used according to styling routines.
• Lathering formula cleanses without stripping essential moisture.

What results can I expect and how should I use it?

With routine use—especially alongside Extreme Length Conditioner and Sealer—you can expect stronger-feeling strands and fewer breakage incidents, helping you retain length. Apply to wet hair, lather, and rinse; follow with the matching conditioner and use the leave-in sealer for targeted end care.

• Use as the first step in a three-part length care system for best results.
• Massage into wet hair, rinse, and follow with Extreme Length Conditioner.
• Consistent use helps maintain strength and reduce the appearance of split ends.

Who is this for: Redken Extreme Length Shampoo is aimed at anyone who struggles to grow hair long because of breakage or visible damage—whether your hair is chemically processed, heat-styled, or naturally fragile. It’s especially useful for people who want a science-forward, salon-grade option in a larger 33.8 fl oz format for regular at-home care.

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>