Kiehl's Since 1851 Amino Acid Shampoo, 8.4-oz.

The best shampoo. I like how smooth it goes on and it smells great.

The cleansing shine and softness is something I never experienced before! And I have tried a lot of different products

[This review was collected as part of a promotion.] Kiehls amino acid shampoo is my husband's favorite! He loves everything about it. The suds, the moisture and most importantly how it makes his hair look!

It’s ok. Smells nice and good lather. Just didn’t do anything fit my hair? I’ll use it for my guest shower.

Kiehl's is loosing its power. They get you used to a product for years and then discontinue it. I used to use a moisturiser for years which has now been discontinued. Same for the rice and wheat voluminising shampoo. That has also been discontinued. I used this amino acid shampoo. It is horrible. I had so much hairfall after using this shampoo. It also strips your hair of all the natural oil and shine. I have stopped using Kiehl's for my hair completely. Super disappointing!

My hair always feels amazing afterwards, it made my hair very healthy

The Amino Acid shampoo is a staple in my routine, I've used it consistently for about 7 years now. I have very sensitive skin and a very tender scalp and the shampoo is gentle, cleansing, and so moisturizing to my waist-length hair. The lather is so gentle and creamy that I'm able to use it daily. After using both the Amino Acid shampoo and conditioner my hair is SO soft and all my friends comment on how shiny and healthy it is. Love love love these products!

I like to use this product for guests. I like it because of the smell and look of the product.

I have been a customer for MANY years. I am faithful to your products. First, you discontinued the sunflower hair mask. Now, you have discontinued the amino acid scalp treatment!!! Why???? I’m very upset. Please respond!

I have tried many high-end shampoos, and this one truly beats them all. It’s gentle, has great lather, and cleans well. I would say my scalp is sensitive, as I’ve struggled with a bit of eczema and dandruff at times but not while using this consistently. As I’ve aged and lost significant weight, my hair has thinned and become somewhat brittle. In January I decided to come back to this shampoo and conditioner and my hair is the healthiest it has been in years - even my stylist commented on how much better my hair was since she’d last seen me. It’s soft, shiny, and my highlights have not discolored or faded in the four months since I’ve had my hair done.