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Details & care
What it is: A leave-in concentrate that provides smoothing for your hair.
Who it's for: All hair types.
What it does: It instantly transforms hair to a marvelously manageable, shiny finish. Formulated with nourishing argan and babassu oils, this concentrate won't weigh hair down and its warm, woodsy scent brings an enhanced sensorial experience.
How to use: Apply daily to damp hair, after shampooing, to smooth and style, or onto dry hair for a weightless, smooth and shiny finish. Style as normal.
- 2.5 oz.
- Paraben-free; sulfate-free; silicone-free
- Made in the USA
- Item #5151218
Ingredients
Cyclopentasiloxane, Dimethiconol, Parfum/Fragrance, Argania Spinosa Kernel Oil, Orbignya Oleifera Oil/Orbignya Oleifera Seed Oil, Linalool, Benzyl Salicylate, Hexyl Cinnamal, Benzyl Alcohol, Coumarin, Limonene, Eugenol, Isoeugenol.
Ingredients are subject to change at the manufacturer's discretion. For the most complete and up-to-date list of ingredients, refer to the product packaging
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Kiehl's Since 1851
Founded in 1851 as an old-world apothecary in New York's East Village, Kiehl's utilizes the finest ingredients in unique formulations to assure high-quality skin, hair and body care products. The company's unique, extensive background represents a blend of cosmetic, pharmaceutical, herbal and medicinal knowledge developed and passed on through the generations.
Most helpful positive review
Jan 23, 2018
Incentivized review
Smells amazing!!
I'm not sure this works any better than some of the other oils I've used, but the smell is amazing! I like that it does not 'sit' on top of my hair either. I have very porous dry hair, and this works well.
lexa316
6found this helpful
Most helpful critical review
July 27, 2025
Scent Too Strong
The scent is overpowering. I purchased this product for my beard and could not take the scent on my face.
Petell
Verified purchase
Reposted from kiehls.com
kiehls.com response
Hi Petell! Thank you for taking the time to share your honest feedback regarding our Smoothing Oil-Infused Leave-In Concentrate. We truly appreciate you reaching out and letting us know about your experience.
We are genuinely sorry to hear that the scent of the product was overpowering for you, particularly when used for your beard. We understand that fragrance preference is very personal, and what is delightful to one individual may not be ideal for another. Our aim is always to create products that enhance your daily routine, and we regret that this particular product did not meet your expectations in terms of its aroma for your specific use.
We value all customer input, as it is invaluable in helping us to continually refine our formulations and improve our product offerings to better serve your needs.
5 stars
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Sort by Most Helpful
Luv2ShopNordie
TOP 50 REVIEWER
Aug 16, 2016
Not moisturizing enough
Despite the argan oil ingredient, this product is not that moisturizing. Smoothing effect seems superficial. Be aware, this product is highly scented. It smells nice imo but can be too overpowering for some. It will linger in your hair for hrs. If you're looking for more moisture, try Kiehl's damage repair & rehydrate leave-in instead. And for smoothing effect/ shine, try the Kiehl's silk groom serum instead which is cheaper and less scented.
18found this helpful
lexa316
Jan 23, 2018
Incentivized review
Smells amazing!!
I'm not sure this works any better than some of the other oils I've used, but the smell is amazing! I like that it does not 'sit' on top of my hair either. I have very porous dry hair, and this works well.
6found this helpful
SweetChel
Apr 20, 2020
Incentivized review
No Longer Dried Out
Love, Love, Love! I have very dry hair and this is the best stuff for it. I've only been using it for 2 weeks but it does what it says. I have no frizz and my hair is smooth and shiny. Not to mention, it does small good.
5found this helpful
Maria Cotrente
Verified purchase
Oct 2, 2023
Kiehl’s smoothing oil infusion
I have been using this oil infusion for few years there is nothing like this oil out there.
2found this helpful
beardlikeapirate
Sept 24, 2023
Great hair oil; horrendous strong fragrance
This is a great weightless oil for dry, bleached hair. Unfortunately I had to return it due to the smell! The THIRD ingredient is parfum/fragrance. It is so strong, and it smells like those old red Christmas candles a grandmother would have in a box. My hair was smooth but it absolutely reeked of stale holiday spice odor.
2found this helpful
SoCalRanchGal
Reposted from kiehls.com
Jan 24, 2026
Positively Addictive!
I usually buy fragrance-free, unscented products, but I am absolutey addicted to the light scent. The scent does fade quickly but smells wonderful and leaves me feeling that I've used a "high-end" product. I have untreated, waist-long, wavy blonde hair with quite a bit of silver. I do love the way it smooths out the subtle frizzies and fly-aways that I get. It is difficult to get any shine in my hair and this conditioner gives it a nice sheen. My only complaint would be that I go through it rather fast and it is pricey for the size. I would love to see this product in the Buy 1, Get 1 Free promos. I highly recommend this leave-in conditioner.