Amino Acid Shampoo

Old price New price £23.00

Model with bubbles on their head from Kiehl's Amino Acid Shampoo

Kiehl's Amino Acid Shampoo bottle, featuring benefits: "Softer, visibly smoother hair"

Kiehl's Amino Acid Shampoo Ingredients - Hydrolyzed Wheat Protein, Amino Acid, Coconut Oil

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Kiehl's Amino Acid hair care routine illustration with bottles – Step 1 Cleanse Step 2 Condition

Two Kiehl's haircare bottles, one for amino acid conditioner and one for shampoo, with text: refill pouch available

A flat lay of Kiehl's bestselling skincare products, including facial cream, eye treatment, and a micro-dosing treatment, with a bold "Shop Our Bestsellers" caption.

A mild shampoo with Coconut Oil and Amino Acids that cleanses and softens hair.

Amino Acid Shampoo

A mild shampoo with Coconut Oil and Amino Acids that cleanses and softens hair.

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75 ml

Old price New price £15.00 (£20.00/100 ml.)

250 ml

Old price New price £23.00 (£9.31/100 ml.)

500 ml

Old price New price £37.00 (£7.40/100 ml.)

1 L Refillable

Old price New price £61.00 (£6.10/100 ml.)

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INSTANT SKIN ANALYSIS Find a routine that's personalised just for you. START ANALYSIS

Find a routine that's personalised just for you.

What It Is

Amino acids are the building blocks of proteins that make up your hair, playing a crucial role in maintaining strength and moisture. When hair lacks these essential components, it can become prone to breakage and dryness. Kiehl's Amino Acid Shampoo is a gentle daily shampoo enriched with Naturally-Derived Coconut Oil, Amino Acids, and Hydrolysed Wheat Protein. This paraben-free formula effectively cleanses while helping to add body, fullness, and shine. Amino Acids work alongside gentle cleansing agents to help strengthen hair and protect against breakage caused by brushing or styling — leaving hair feeling soft, healthy, and manageable. With a light, fresh scent and a creamy lather, we consider it a customer favourite suitable for all hair types. Continue reading to discover what makes this shampoo so effective.

What It’s Good For

Cleanses and softens hair while helping to add volume and shine
Helps strengthen hair and protect against breakage from brushing and styling
Creates a rich, creamy lather for a luxurious shampoo experience
Gentle enough for daily use on all hair types
We consider this a customer favourite

Explore the key ingredients below to learn why.

Key Ingredients

A close-up view of several test tubes filled with bright blue liquid, arranged in a rack with a soft blue glow from below.

AMINO ACIDS

We use Amino Acids because they are fundamental to the human body and are the building blocks that make up proteins. When combined with gentle cleansing agents, they help clean while remaining mild and balanced for the skin and hair. Amino Acids may help moisturise by supporting the skin's ability to retain water.

A small bowl filled with white, fluffy texture resembling snow or finely grated coconut, placed on a rustic wooden surface.

FAIRLY TRADED COCONUT OIL

Coconut Oil is derived from the Coconut Tree. Used in Ayurvedic medicine for over 4,000 years, Coconut Oil is rich in fatty acids and known to nourish, hydrate and soften.

A close-up view of golden wheat stalks swaying gently in a sunlit field, with a soft blue sky in the background.

HYDROLYZED WHEAT PROTEIN

Hydrolysed Wheat Protein, also known as Phyto Peptides, is often used in products formulated to help condition and moisturise. Read on to learn how to use this shampoo for best results.

How to Use

Wet hair
Gently massage shampoo with Coconut Oil through hair, working formula into a lather
Rinse
Repeat if desired
In case of contact with eyes, rinse them immediately
Discover our conditioner enriched with Coconut Oil to help strengthen hair and improve manageability.

Complete Your Routine

Discover efficacious formulas to upgrade your routine.

Step 1

Amino Acid Shampoo

A mild shampoo with Coconut Oil and Amino Acids that cleanses and softens hair.

Old price New price £23.00

Step 2

Package photo of Kiehl's Amino Acid Conditioner

Model Using Kiehl's Amino Acid Conditioner on their hair

Amino Acid Conditioner

Hair is primarily made of protein, and daily exposure to styling, heat, and environmental factors can weaken its structure. Amino acids—the building blocks of protein—can help restore and strengthen hair. Our Amino Acid Conditioner combines these essential amino acids with nourishing Coconut Oil and Jojoba Oil for daily conditioning.

Old price New price £23.00

Safety Information

In case of contact with eyes, rinse them immediately. Please keep out of reach of children. If you have any questions, please see our FAQs below.

Frequently Asked Questions

WHAT DOES KIEHL'S AMINO ACID SHAMPOO DO?

Kiehl's Amino Acid Shampoo gently cleanses hair while helping to add body, softness, and shine. Formulated with Naturally-Derived Coconut Oil, Amino Acids, and Hydrolysed Wheat Protein, it works to strengthen hair and help prevent breakage caused by brushing or styling — all without stripping your hair of its natural moisture.

IS KIEHL'S AMINO ACID SHAMPOO GOOD FOR ALL HAIR TYPES?

IS KIEHL'S AMINO ACID SHAMPOO PARABEN-FREE?

ARE AMINO ACIDS GOOD FOR YOUR HAIR?

Yes, amino acids are typically considered the building blocks of the proteins that make up your hair. In shampoo formulations, they help cleanse gently while supporting hair strength, moisture retention, and overall manageability — making them especially beneficial for hair that's prone to dryness or breakage.

IS KIEHL'S AMINO ACID SHAMPOO GOOD FOR DRY SCALP?

Kiehl's Amino Acid Shampoo features a mild formula that cleanses without stripping, which may help maintain the scalp's natural moisture balance. The Coconut Oil in the formula is known for its nourishing and hydrating properties, making this shampoo a gentle option for those with a dry or sensitive scalp.

WHAT DOES KIEHL'S AMINO ACID SHAMPOO SMELL LIKE?

CAN I USE KIEHL'S AMINO ACID SHAMPOO EVERY DAY?

Yes, this shampoo is gentle enough for daily use. The mild, amino acid-based cleansing agents effectively remove dirt and build-up without stripping your hair, so you can use it as often as you like. We recommend pairing it with our Amino Acid Conditioner, which may help you achieve optimal results.