Amino Acid Conditioner

An exotic, silicone-free daily conditioner for all hair types
  • Gentle, daily silicone-free conditioner
  • Formulated with wheat proteins and amino acids for a light, creamy texture
  • Imparts a healthy-looking shine to hair without weighing it down
  • Helps maintain hair’s natural moisture balance to further strengthen hair and improve manageability

"I love how this conditioner nourishes and strengthens my hair without weighing it down."

Shu, Kiehl’s Insider

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How to Apply:
-After shampooing with the Kiehl's Shampoo appropriate for your hair and scalp type, rinse hair thoroughly
-Apply Amino Acid Conditioner by gently working it into the scalp and hair-especially the ends and combing through
-Leave in for a few minutes and then rinse out

uh-MEE-noh AS-ids

Amino Acids are fundamental to the human body and construct proteins. When chemically united with fatty alcohol or fatty acid, they have cleansing properties and maintain their mild amphoteric character. Amino Acids are known to moisturize by enhancing the skin's water retention.

KOH-keh-nut OY-il

Coconut oil is an off-white, semi-solid, highly saturated fat expressed from the kernels of the coconut. It is stable when exposed to air. It lathers quickly and is a good skin cleanser commonly used in many skin care formulations. Lathers readily and softens skin.


Jojoba Oil is extracted from the beanlike seeds of the desert shrub Simondsia Chinensis and has been traditionally used by both Mexicans and Native Americans for skin care purpose. It reduces transepidermal water loss without completely blocking the transportation of water vapor and gasses, providing suppleness and softness. It is nurturing for the skin and helps to restore skin's natural lipid barrier.

Browse 17 questions and 76 answers
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Why did you choose this?
Kiehl's Since 1851 Store
beth c on Jul 1, 2015
used before. like it
serena w on Jun 24, 2015
i already use this product
Christine M on Jun 28, 2015
I've been using it since 3 year ago, loved it and don't want to change to any other conditioner and shampoo.
Jacky Z on Jun 22, 2015
Can I use the Amino Acid Shampoo and Conditioner if I have Keratin in my hair? Are both products sulfate free?

ashley p on Jul 30, 2012
can you use this as a leave in conditioner?
A shopper on Sep 29, 2013
Best Answer: Sure! It's an excellent conditioner and works well both ways.
Reply · Report · Pina K on Sep 29, 2013
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Is this conditioner gluten-free?
Celesteville on Aug 1, 2013
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is amino acid conditioner a leave in or rinse out conditioner?
A shopper on Jun 12, 2014
Best Answer: Rinse out! In fact, you don't need to use very much in order see a difference in your hair.
Reply · Report · Chetna F on Jun 12, 2014
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Is this conditioner as good as the extra strength conditioning rinse? I loved that one and finally used my last bottle...
jessie l on Dec 24, 2013
Best Answer: Yes, I think this conditioner is very effective.
Reply · Report · thomas a on Dec 24, 2013
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I have curly hair. Will this take the curl out? It does not mention curly hair.
Helene S on Jun 16, 2013
Best Answer: I have curly hair and for me it defined the curl...but i use it with the matching conditiiner...your hair will be really shiny too.
Reply · Report · Iris B on Aug 2, 2013
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I have thick, short, coarse hair is this good for my type of hair?
Ted L on Aug 23, 2012
Best Answer: I love this conditioner. I've used when I've had both short and long hair, and it always makes it feel full and shiny.
Reply · Report · Kat W on Aug 23, 2012
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how long should a 1 liter pump last?\
A shopper on Oct 16, 2013
Best Answer: At least five months for two people (both with relatively short hair) washing their hair daily. Not much is needed for it to do an excellent job conditioning your hair.
Reply · Report · Steven S on Oct 16, 2013
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Does Kiehl's amino acid conditioner protect commercial hair coloring?
A shopper on May 4, 2015
Best Answer: I thought it worked fine with commercial hair coloring. It did not strip any color, or cause the color to fade quicker than normal from my hair.
Reply · Report · Shannon S on May 4, 2015
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Does kiehl's use palm oil in their products?
K A on Apr 19, 2015
Best Answer: The Amino Acid conditioner has coconut and jojoba oils.
Reply · Report · Davida R on Apr 19, 2015
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Is amino acid shampoo and conditioner suitable for people that get allergies easily or who normally use hypoallergenic shampoos and conditioners?
Danielle B on Nov 4, 2014
Best Answer: Danielle, between the two of us, my wife and I have way too many allergies - indoor and outdoor. We both use the amino acid shampoo and conditioner with no problem and really enjoy them. Good luck!
Reply · Report · Sean S on Nov 4, 2014
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Does this product contain cocamide diethanolamine (or cocamide DEA)?
Deirdre on May 18, 2014
Best Answer: Deirdre,
No it does not. I checked the label twice to be sure. I hope this helps!
Reply · Report · David K on May 18, 2014
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Is this amino acid conditioner effective on thinning hair?
linda l on Jan 20, 2015
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What preservative is being used if there are no parabins used?
A shopper on Dec 29, 2014
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I know the Amino Acid Conditioner is good for hair, but i do not know how to use it? after we wash the hair with shampoo, then we put the conditioner on our hair. then? need we wash the hair?
sun j on May 30, 2014
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Do this conditioner has salt ?
A shopper on May 20, 2014
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We’re confident you will see healthier, revitalized skin in
28 days. Guaranteed or your money back.

Kiehl’s Skincare is scientifically formulated to restore and strengthen the skin barrier for healthier, younger-looking skin. Our targeted treatments are powerful, yet safe preparations which act to correct and treat your specific skin needs and concerns.