Search  for anything...
K18

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

    • Based on 1,094 reviews
Condition: New
Checking for product changes
$27.00 Why this price?

Buy Now, Pay Later

As low as $6 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

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.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

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.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Jan 24
Order within 20 hours and 43 minutes
Available payment plans shown during checkout

Size: 0.34 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: All


Scent: Unscented


Liquid Volume: 10 Milliliters


Item Form: Oil


Product Dimensions ‏ : ‎ 0.15 x 1.5 x 4 inches; 1.13 ounces


UPC ‏ : ‎


Manufacturer ‏ : ‎ K18


Country of Origin ‏ : ‎ USA


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jan 24

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.

Similar Products

Top Amazon Reviews

    • Works magic
Size: 1 Fl Oz (Pack of 1)
Not heavy oil feeling nice moisture feeling very easy to use leaves hair soft and shinny
Reviewed in the United States on December 14, 2024 by Lynda Vargas
    • 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
    • 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
    • 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
    • Works well but you need to use more than they suggest.
Size: 1 Fl Oz (Pack of 1)
It smells nice and seems to really smooth my hair well, but they recommend using 3 drops. I have hair that is about 1" below my shoulders and I need to use more like 8-10 drops. And it's a fine line between getting the right amount and too much. If you overdo it your hair will look a bit greasy. But when you get it just right, it does give your hair a sleek gloss. ... show more
Reviewed in the United States on February 24, 2024 by Happy One
    • Will not buy it again
Size: 1 Fl Oz (Pack of 1)
It smells nice but is not better than cheaper argan oil in the supermarket. It is overpriced for the quantity.
Reviewed in the United States on July 30, 2024 by Micha
    • Wow! What a difference!
Size: 1 Fl Oz (Pack of 1)
My granddaughter introduced me to this. I have been dealing with medical problems and losing hair like crazy. I started using this a week ago and although I'm still losing hair it's not as much. My hair is softer and shines. I'm anxious to see how it will be in a few weeks.
Reviewed in the United States on January 5, 2025 by Doxie Mom
    • 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

Can't find a product?

Find it on Amazon first, then paste the link below.