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K18

K18 Molecular Repair Hair Oil, Weightless Oil for Stronger, Healthier Hair, Suitable For All Hair Types

    • Based on 1,075 reviews
Condition: New
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$65.00 Why this price?

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As low as $10.83 / mo
  • – 6-month term
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  • – Instant approval decision
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Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2025

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Dec 23
Order within 6 hours and 36 minutes
Available payment plans shown during checkout

Size: 1 Fl Oz (Pack of 1)


Product Benefits: Our K18PEPTIDE™ repairs hair at a molecular level across multiple types of bonds, restoring hair health for all See more


Hair Type: Normal


Material Type Free: Silicone Free


Scent: Unscented


Liquid Volume: 30 Milliliters


Product Dimensions ‏ : ‎ 1.5 x 1.5 x 4 inches; 2.4 ounces


Item model number ‏ : ‎ K18-32011


UPC ‏ : ‎


Manufacturer ‏ : ‎ K18


Country of Origin ‏ : ‎ USA


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Dec 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Soft and Shiny
Size: 0.34 Fl Oz (Pack of 1)
This hair oil is lightweight, absorbs well, and leaves hair feeling soft and shiny. Great stocking stuffer or birthday gift.
Reviewed in the United States on November 26, 2024 by Posh
    • Great product!
Size: 1 Fl Oz (Pack of 1)
The heat protection, the shine, the softness, the healthy look. Big fan! Worth the money!
Reviewed in the United States on October 30, 2024 by Amazon Customer
    • Amazing
Size: 1 Fl Oz (Pack of 1)
This product is amazing! Just got my hair dyed and usually it gets super dry but using this product along with the k18 leave in my hair is silky, my ends are hydrated and it helps control the frizz from the summer humidity.
Reviewed in the United States on August 9, 2024 by Amazon Customer
    • GREAT product!!
Size: 1 Fl Oz (Pack of 1)
The media could not be loaded. I am so glad I heard about k18 products. k18 makes a huge difference in my hair. My hair is naturally frizzy and gets really dry without any real reason (maybe from hard water), but after having my hair lightened with bleach it was much worse. I ended up with a ton of split ends and breakage which was really discouraging after growing my hair out for years, but K18 hair oil and k18 leave-in hair mask has made my hair so much healthier and manageable. It helps tame the frizz and leaves my hair so silky smooth without and residue feeling. If you use to many drops it will leave you hair lightly greasy, so just test out how many drops work for your hair type and length. My hair is to the middle of my back, I have fine, frizzy wavy, dry hair and I use 1-3 drops and I apply it to the ends of my hair and work it up half way (on some of the dryer spots I will add a little more to help repair that problem area). Then I brush my hair to make sure it gets on all hair strands. I like how it is heat safe and actually can help protect you hair from heat damage. ... show more
Reviewed in the United States on January 30, 2024 by Michaela
    • Great for frizzy hair
Size: 1 Fl Oz (Pack of 1)
I love the quality of this product… all k18 are the best for frizzy, dry hair
Reviewed in the United States on August 20, 2024 by Santa’s elf
    • It smells good, it’s not heavy, but that’s about it.
Size: 0.34 Fl Oz (Pack of 1)
I purchased this product after reading plenty of great reviews. First of all, it smells great. The oil has a nice consistency and does not make your hair look greasy or too heavy. However I have medium length naturally wavy hair, and this product does nothing for me. I will put some on when I notice a frizz-mania going on, but I find that it doesn’t help me. I have put the product on when my hair is wet, and I don’t notice much of a difference. I am a little disappointed because there are so many great reviews! But, unfortunately I will not be repurchasing. ... show more
Reviewed in the United States on February 26, 2024 by Amazonk
    • Love k18
Size: 1 Fl Oz (Pack of 1)
I’m 5’11” and have hair to my butt. My hairstylist has always recommended k18 but they don’t always love too because it’s def pricey. Worth it though! A little goes a long way. I personally can’t speak on how well or if at all it has increased the health of my hair. My hair is pretty healthy already. Adds great shine. Too much and it’s too oily! ... show more
Reviewed in the United States on November 24, 2024 by Lil Tooth Cleaner
    • Overpriced and useless
Size: 0.34 Fl Oz (Pack of 1)
The suggested amount of 1-3 drops is ridiculous, especially if you have long or damaged hair. The droplet is tiny so 3 drops just disappears into the skin of your palms. Instead, I squeeze out all that’s in the droplet for each use, and even at that, I feel nothing. My hair doesn’t feel any different, and there’s still breakage. I have long hair and have been bleaching and coloring for the past 3 years, so I thought my hair type is ideal to test a product like this. Waste of money and full of pretentious false claims. ... show more
Reviewed in the United States on November 5, 2024 by Isabella

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