Kiehl's Amino Acid Shampoo 1 L Refill — Coconut Oil & Wheat Protein, Gentle Daily Cleanse for Stronger Hair

Kiehl's Amino Acid Shampoo is a gentle, daily-use formula that cleanses, nourishes and helps strengthen hair while leaving it soft, shiny and voluminous.

This 33.8 fl oz / 1 L refill delivers a lightweight, creamy lather powered by amino acids, coconut oil and wheat protein to clarify hair without stripping moisture. Designed for all hair types, the paraben-free formula targets breakage and helps maintain hydration so hair feels fuller and more resilient after repeated use. Its refill size makes it practical for home use or to reduce single-use plastic.

How does this shampoo clean without drying my hair?

The formula uses mild amino-acid surfactants that lift dirt and oils while preserving the hair’s natural moisture balance. Coconut oil and wheat protein add nourishment so strands don’t feel chalky after rinsing.

• Mild amino-acid cleansing agents for gentle foaming
• Coconut oil supplies fatty acids to support hydration
• Wheat protein conditions and helps improve strand texture
• Paraben-free for a cleaner ingredient profile

Will it help reduce breakage and improve strength?

While not a repair treatment, the blend of amino acids and proteins supports hair structure and flexibility, making strands less prone to snap when wet or styled. Regular use can make hair feel stronger and appear healthier due to improved moisture retention and conditioning.

• Amino acids help maintain internal moisture for resilience
• Wheat protein smooths and fortifies individual fibers
• Coconut oil helps minimize friction and tangling
• Suitable for use before styling to reduce mechanical stress

How should I use this 1 L refill for best results?

Apply the shampoo to wet hair, massage into a rich lather, then rinse thoroughly. For an optimized routine, follow with a conditioner or Kiehl's Amino Acid treatment to seal in moisture and enhance manageability.

• Wet hair thoroughly before applying a small amount
• Massage into scalp and lengths to emulsify oils and buildup
• Rinse completely and repeat if hair is heavily soiled
• Pair with a conditioner for balanced hydration and softness

Is this product suitable for my hair type and lifestyle?

The shampoo is formulated for all hair types, from fine to thick, and works well for daily use. Its lightweight finish avoids weighing down fine hair while delivering enough conditioning for medium to coarse textures; the refill format supports sustainable, cost-effective routines.

• Lightweight texture for fine and limp hair
• Conditioning benefits for medium and coarse hair
• Daily-use formulation for frequent washing schedules
• Refill size reduces packaging waste and saves money

Who this is for: This Kiehl's Amino Acid Shampoo refill is ideal for anyone seeking a gentle, everyday cleanser that balances effective cleansing with moisture preservation—perfect if you want softer, shinier hair without heaviness. It suits people who shampoo often, households wanting a large refill size, and anyone preferring paraben-free, conditioning-forward products that support stronger-feeling hair over time.

Ingredients

Aqua/Water, Sodium Methyl Cocoyl Taurate, Sodium Coco-Sulfate, Sodium Chloride, Coco-Betaine, Lactic Acid, Parfum/Fragrance, PPG-5-Ceteth-20, Sodium Lauroyl Glutamate, Propylene Glycol, PEG-55 Propylene Glycol Oleate, Salicylic Acid, Benzoic Acid, Guar Hydroxypropyltrimonium Chloride, Coconut Alcohol, Sodium Sulfate, Cocos Nucifera Oil/Coconut Oil, Coumarin, Wheat Amino Acids, Fumaric Acid, Hydroxypropyltrimonium Hydrolyzed Wheat Protein, Phenoxyethanol, Disodium EDTA, Potassium Sorbate.