K18 Molecular Repair Hair Oil, Weightless Oil for Stronger, Healthier Hair, Suitable For All Hair Types
$27.00
Price: $27.00
(as of Jul 28, 2025 03:11:51 UTC – Details)
From the brand
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Product Dimensions : 0.15 x 1.5 x 4 inches; 1.13 ounces
UPC : 858511000794
Manufacturer : K18
ASIN : B0CD84PNDD
Country of Origin : USA
Best Sellers Rank: #2,904 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #28 in Hair Treatment Oils
Customer Reviews: 4.4 4.4 out of 5 stars 1,625 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Customers say
Customers find the hair oil effective, with one mentioning it works particularly well on dry damaged hair, and they appreciate its softness without feeling greasy. The product receives positive feedback for its quality, health benefits, and shine, with one customer noting it adds shine without weight or a greasy look. While some customers say it smells nice, others find it heavily fragranced. Customers disagree on the product’s brittleness.
13 reviews for K18 Molecular Repair Hair Oil, Weightless Oil for Stronger, Healthier Hair, Suitable For All Hair Types
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$27.00
jessica b. –
Worth every penny!!
Iâm officially a lifelong customer of K18!This product has made my hair unbelievably shiny and silkyâitâs truly incredible. I use the full K18 line, but this one stands out as the most effective while requiring only a tiny amount. Just three drops through my damp hair, and once it dries, thereâs zero frizz and so much shine. Itâs not cheap at $65, but absolutely worth every penny.
Acox –
K18 is the best hair care!
K18 is some of the best hair stuff I have ever used. I worried about using oil in my hair because I thought it would make my hair greasy-but it doesn’t. I use like 3 drops and only put it on the ends of my hair and it gives it a nice healthy look. Great product! Highly recommend all their products!
Amazon Customer –
The quality is amazing
this produc is totally amazingand the smell is awesomeI totally love it !! I will suscribe to continue using it10 stars!!!
Elizabeth Durrett –
Lifesaving oil for camp hair
Sent this with my daughter who has course, thick hair to camp and she said it saved her ends. Expensive but worth every penny.
V.B –
Shine, Strength, and No FrizzâAll in One Drop
K18 Molecular Repair Hair Oil is a luxe, peptide-powered treatment offering legit benefitsâlighter, smoother, shinier hair with frizz control and heat defense. Itâs especially worth it for damaged, bleached, or frizz-prone users. Just remember: less is more, and pairing it with the K18 mask amplifies results. Itâs definitely pricy but would like to buy again..
Daniela Berliner –
Nice texture, no grease
I like it so farIâve been trying it for a few days and it leaves my hair soft without feeling heavy. I only need a tiny bit. It helps a lot with frizz, especially when I straighten my hair. Doesnât leave that greasy finish like some other oils.
Amber Jackson –
Disappointed
I really wanted to like this product based on all the hype, but unfortunately, it did not work for me at all. I used it hoping it would improve the look and feel of my hair, but instead it left my ends dry, fluffy, and worse than before. It didnât deliver on any of its promises.Maybe the other products in this line are better, but this particular one is a definite no for me. I wonât be repurchasing and wouldnât recommend it to others with similar hair concerns. Save your money and look elsewhere.
VanillaPepper –
Subtle Scent, Serious Letdown â Left My Hair Drier Every Time
Give it three stars because so many people love it but personally I think itâs horrible especially for people with over processed hair and I had high hopes for the K18 Molecular Repair Hair Oil. With all the buzz surrounding this sleek, science-forward brand and the premium price tag, I expected a transformative experience. What I got was a subtle-scented, high-end disappointment that made my overprocessed, thinning blonde hair worseânot better.Hereâs what happened:⸻Scent: Clean and SubtleLetâs give credit where itâs due. The fragrance is very mild, almost undetectableâsomething I appreciate in leave-in products. It wonât compete with your perfume or irritate a sensitive scalp. I thought this was a promising sign.⸻Performance: Left My Hair Feeling Even DrierMy hairdresser first used this oil on me, thinking it might help after color treatment. It didnât feel hydrating at all. I brought a sample home and gave it several chances, applying it to damp and dry hair alikeâbut each time, my hair felt rougher, not softer.Instead of sealing moisture, it seemed to highlight the brittleness of my ends. Even small amounts left my hair looking dull, weighed down, and more prone to frizz, not less. It did not detangle, did not smooth, and did not protect.⸻Why It Doesnât Work (at least not for fragile hair):⢠No nourishing slipâlacks that emollient softness good oils provide⢠Too light for dry or porous hair, yet somehow still left a residue⢠Claims to ârepairâ or âshieldâ just didnât hold up in real use⢠Doesnât layer well with other productsâcaused buildup and texture issues⸻Price vs. Performance: Overhyped and OverpricedThis is a luxury price for lackluster results. Iâve tried many productsâfrom clinical-grade formulas to budget oilsâand I rarely return something this quickly. Thankfully, because Iâd tried a sample and already knew it didnât work for me, I was able to return the full-size bottle unopened once my Amazon order arrived.⸻My Hair Type:Fine, thinning, dry, overprocessed blondeâand currently under dermatologist care. Iâve had success rebuilding my hairâs strength and moisture balance with the right mix of products. This was not one of them.⸻Bottom Line:If your hair is damaged, brittle, or color-treated, I donât recommend this oil. It didnât deliver on any of its promises and actively made my hair feel worse.Follow me for honest, experience-based reviews. I test both luxury and affordable options for stressed-out hairâso you donât waste time or money on products that donât work.⸻Full Ingredients (from official label):Caprylic/Capric Triglyceride, Dimethicone, C13-15 Alkane, Bis-Hydroxy/Methoxy Amodimethicone, Isododecane, Isoamyl Laurate, Fragrance (Parfum), Tocopherol, Schinziophyton Rautanenii Kernel Oil, Squalane, Phytosteryl Macadamiate, Cocos Nucifera (Coconut) Oil, Oryza Sativa (Rice) Bran Oil, Simmondsia Chinensis (Jojoba) Seed Oil, Hydroxypropyl Gluconamide, Hydroxypropylammonium Gluconate, Citric Acid, Benzyl Salicylate, Limonene, Linalool.
Bonny –
Tengo decoloración en todo mi cabello, y este aceite no mancha mi rubio como otros aceites tipo moroccanoil.
Client d’Amazon –
En combinaison avec le k18 crème restructuration sublime les cheveux abîmés ou ternes. Les rends soyeux et brillants.
Ms. Magoo –
This hair oil is pricey but it has really made a difference. I have colour-treated hair and live in an area with hard water that has lots of minerals in it. This means my hair has become dry and listless. What I really like about this hair oil is that it doesn’t seem to build up. It smoothes my flyaways and make the ends look healthy. I have long hair (several inches below my shoulders) so I need to use a few more drops than most. I also use a couple of drops at night on my ends and put my hair in a top knot. There is a visible change in my hair and I’m quite pleased. Highly recommend.
Lucie Homolkova –
Sehr gut, leicht zu kämmen
Cliente Amazon –
I love the K18 mask and was expecting the same⦠not so impactful.