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Insiders Say This Hair Oil Is a ‘Must’ For Getting Rid of Split Ends (& It’s $20 for Prime Day!)

Take advantage of the sale before it ends on July 11.
K18 Hair Oil Review
Images: Amazon; Getty. Design: Sarah Ceniceros / StyleCaster.

All products and services featured are independently chosen by editors. However, StyleCaster may receive a commission on orders placed through its retail links, and the retailer may receive certain auditable data for accounting purposes.

As someone with long hair and highlights, I know the struggle of dry, split ends all too well. Split ends can be caused by various factors, including hair dye and bleach, dry air, sun exposure, heat styling, lack of hydration, and tight hairstyles. And, sometimes, you just need a quick trim to free your ‘do from all of the splitting. To support hair health and prevent hair from splitting for as long as possible, incorporating nourishing haircare formulas—such as a hair oil—can do the trick. 

Right now, one of the best hair oils for dry ends is on major sale for Amazon Prime Day. But, you’ll only have until July 11, 2025 to take advantage of the discounted price, so add it to your cart ASAP. 

The Best Hair Oil for Dry Ends

Psst: The Best Hair Oil for Dry Ends Is on Sale for Prime Day
K18 Molecular Repair Hair Oil
On Sale 26% off
If you’re wondering how to get rid of dry ends on hair, it totally depends on your situation. In most cases, a little trim can go a long way. But if your hair is bleached or prone to dryness, you might experience dry ends regardless of a salon appointment. To help keep your strands in tip-top shape, try the K18 Molecular Repair Hair Oil . This restorative hair oil can actually help reverse some damage, rehydrate dry ends, and even mask the look of split ends. 

The formula is enriched with an impressive blend of Hemisqualane, squalane, and avocado oil, plus the brand’s K18PEPTIDE™ to strengthen hair, improve shine, and even repair some damage and reduce split ends by up to 74%. Since it boasts such nourishing ingredients, it can also keep frizz at bay for up to 24 hours and doubles as a heat protectant for up to 450 degrees Fahrenheit. 

Amazon customers can’t get enough of this hair oil, with some calling it a “must” for damaged hair and split ends. They also love that you don’t need a lot of formula to get the job done. “3 drops work on all my ends, so a little goes a long way,” one customer confirms. “Just 3-4 drops make a huge difference,” says another

A 0.34-ounce bottle is usually around $27 a pop, but with Amazon Prime Day deals, you can get this miracle oil for just $20 through July 11. 

Size: 0.34 ounces; 1 ounce 
Key Ingredients: K18PEPTIDE™, Hemisqualane, squalane, avocado oil 
Hair Type: Fine, medium, and thick
Hair Texture: Straight, wavy, curly, and coily
Hair Concerns: Damage, split ends, breakage, frizz, shine

More K18 Products for Healthy Hair 

Cleansing and conditioning your hair is key to healthier hair. Before applying an oil like the K18 Molecular Repair Hair Oil to target dry strands and split ends, it’s best to start with a high-quality shampoo and conditioner duo, such as the K18 PEPTIDE PREP™ Color-Safe Detox Clarifying Shampoo and the K18 Damage Shield Protective Conditioner

Psst: The Best Hair Oil for Dry Ends Is on Sale for Prime Day
K18 PEPTIDE PREP™ Color-Safe Detox Clarifying Shampoo
On Sale 24% off
For optimal hair health, reach for a clarifying shampoo once or twice a month. The K18 PEPTIDE PREP™ Color-Safe Detox Clarifying Shampoo is one of the best, thanks to its inclusion of salicylic acid and activated charcoal, plus the brand’s K18PEPTIDE™, which helps reduce protein loss for stronger hair that doesn’t shed as much. One cleanse with this K18 Clarifying Shampoo can help reduce excess oil and provide a deep cleanse without stripping the scalp. 

Size: 8.5 ounces 
Key Ingredients: K18PEPTIDE™, salicylic acid, activated charcoal
Hair Type: Fine, medium, and thick
Hair Texture: Straight, wavy, curly, and coily
Hair Concerns: Damage, split ends, breakage, and scalp buildup
Psst: The Best Hair Oil for Dry Ends Is on Sale for Prime Day
K18 Damage Shield Protective Conditioner
On Sale 27% off
After cleansing your scalp and strands with the K18 Clarifying Shampoo , follow up with the K18 Damage Shield Protective Conditioner . In a way, this conditioner is like sunscreen for your hair, since it is formulated to protect hair from environmental aggressors (including UV rays) for up to three days. It can also protect hair from heat styling damage and, overall, results in a softer, smoother, and more moisturized ‘do. 

Size: 8.5 ounces 
Key Ingredients: K18PEPTIDE™, ceramide blend
Hair Type: Fine, medium, and thick
Hair Texture: Straight, wavy, curly, and coily
Hair Concerns: Damage, split ends, breakage, frizz, UV protection

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