A leave-in conditioner that is “tailored to your hair will improve texture, softness and resilience”, explains certified trichologist Izabella Bordignon. They can also play a crucial role in maintaining the hair’s pH balance”, says hair stylist Patricia Davis.
Designed to be applied after you’ve washed your hair, the best leave-in conditioners go beyond basic detangling; smoothing flyaways, boosting hydration and even doubling up as heat protectors. You can find formulas to suit every hair type and texture, from tightly coiled strands to fine, straight lengths – and at every price point, too.
That said, not all leave-ins are created equal. The wrong formula can leave hair greasy, weighed down or tangled, which is why ingredients and formulation matter more than good marketing. Three testers and I put a wide range of the industry’s best leave-in conditioners through their paces, trialling them across our varied hair types and styling routines to narrow down the best of the bunch.
Read more: Best hair dryers 2026, tested for the perfect blow dry on three hair types
The best leave-in conditioners for 2026 are:
- Best overall – Davines OI all in one milk: £23.50, Sephora.co.uk
- Best budget buy – Noughty let's bond, bond repair leave-in treatment: £14.99, Amazon.co.uk
- Best for damaged hair – K18 biomimetic hairscience leave-in molecular repair hair mask: £30, Cultbeauty.co.uk
- Best for curly hair – Moroccanoil intense curl cream: £29, Lookfantastic.com
- Best for straight hair – Pureology color fanatic multi-tasking leave-in spray: £27.49, Amazon.co.uk
- Best for coily hair – As I Am Jamaican black castor oil leave-in conditioner, £7.48, Amazon.co.uk
Read more: Best hair masks to revive dry and damaged locks, tested for every budget
Davines OI all in one milk
.png)
Best: leave-in conditioner overall
Why we love it
- Clean, soapy scent
- Distributes easily and evenly
- Accentuates waves
- Creates healthy shine, even after air-drying
Take note
- Not ‘curly girl’ approved
For a second year in a row, Davines’s OI all in one milk takes the top spot as the best leave-in conditioner. The lightweight formula delivers nourishing results, smoothes frizz and makes hair more manageable.
Unlike other products in this guide (for example, Color Wow’s carb-infused treatment), it doesn’t need heat to work. It performs well on air-dried hair, making it a versatile, low-effort addition to any routine. That said, it is also a heat protector, and it improved my usually frizzy hair when blow-drying and straightening.
Perhaps most impressive was that, despite going to sleep with wet hair (a cardinal sin), I woke up with silky and shiny locks.
On the whole, it’s a versatile choice. While those with curly hair might dislike Davines’s use of silicones for ringlets and coil maintenance, I’m seeing respected brands reintroduce the ingredient after a recent TikTok-driven boycott.
Reviewed by Lucy Smith
Key specifications
Buy now £23.5, Sephora.co.uk
Noughty let's bond, bond repair leave-in treatment
.avif)
Best: budget leave-in conditioner
Why we love it
- Smells pleasant (like coconut and vanilla)
- Boosts shine
- Doesn’t weigh down hair
Take note
- Perhaps not nourishing enough for ultra-dry strands
Noughty let's bond, bond repair leave-in treatment is a great budget option. And it’s often compared to Olaplex’s no 3 perfector. Of course, it doesn’t feature the brand’s patented ingredient, but it contains a pretty effective imitation.
The formula penetrates the hair shaft and forms bonds with the keratin proteins that make up our hair to repair breaks in the structure.
As someone with natural hair, I couldn’t test this on bleach damage, but I could test it on heat damage, which can leave my hair brittle and poker straight. The formula helped to counteract this. After continued use, most damaged sections of hair (specifically, those towards the back and underside) looked more flicky and bouncy, while the hair all across my head appeared glossier.
Reviewed by Lucy Smith
Key specifications
Buy now £14.99, Amazon.co.uk
Pureology color fanatic multi-tasking leave-in spray
Best: leave-in conditioner for straight hair
Why we love it
- Fine mist disperses across large area of hair quickly
- Bottle lasts a long time (and is slightly larger than competitors)
- Huge multi-tasker
Take note
- Substantial tangles may still need a bit of attention
If you have straight hair (like me), I’d recommend Pureology’s best-selling color fanatic leave-in spray.
It’s a multi-tasking formula, so it replaces the need for a heat protectant, hair oil, bonding treatment and blow-dry cream. It promises heat and UV protection and contains antioxidants to protect against environmental stressors, such as pollution and hard water.
The mist easily covers my entire head of hair – be it damp and post-wash, or before dry styling – and doesn’t weigh down my roots. In fact, quite the opposite. When I’ve used it before curling, I’ve found my ringlets have lasted all day.
I did find that large knots in my hair needed a bit of attention, so I wouldn’t recommend it if your hair is quick to tangle. And I’d take its promise of a speedier blow-dry with a pinch of salt – I didn’t notice a huge improvement in drying time.
That said, this remains one of my favourite leave-ins for straight hair as it ticks a lot of boxes. It removes the need to layer various hair products and doesn’t leave my hair feeling greasy.
Reviewed by Lucy Smith
Key specifications
Buy now £27.49, Amazon.co.uk
Moroccanoil intense curl cream
Best: leave-in conditioner for curly hair
Why we love it
- Leaves curls soft and glossy
- Lasting hydration
- Gives definition and hold
- Works as a perfect refresher
Take note
- The pump is slightly awkward to open at first
Morrocanoil’s classic argan oil treatment was my entry into quality haircare more than 10 years ago, and hasn’t left my arsenal since. That’s probably why I love the smell of the brand's intense curl cream leave-in conditioner so much, a fragrance that smells rich and decadent, not fruity or flowery. But it’s not just the familiar aroma that makes this a big win for me.
After being in a rut of lacklustre leave-ins and sad-looking hair, I reintroduced the formula. After combing it through washed, wet hair, I was impressed. After a few uses, my curls hadn’t looked so silky, springy, soft and defined in quite possibly years.
It works when applied to wet hair, damp hair, or even a little smoothed through the ends when blow-dried straight. The effects build when reapplied to dampened hair, with my curls dropping into silkier, longer spirals as the week goes on. Beyond how it looks, it feels stronger and truly healthy.
Reviewed by Elena Chabo
Key specifications
Buy now £24.65, Lookfantastic.com
Olaplex no.5 moisturise and mend leave-in conditioner
.avif)
Best: leave-in conditioner for dry hair
Why we love it
- Signature sugary Olaplex scent
- Results after just one use
Take note
- Works best with full Olaplex product roster
Olaplex’s no.5 leave-in conditioner left my roots fluffy and light and my lengths smooth and hydrated.
With a limited dose, I was sceptical that the claimed heat protection would adequately coat every strand; however, my hair appeared neither brittle nor frazzled after blow-drying, so I’d say it distributed better than expected.
These results were amplified when I combined the leave-in formula with the brand’s no. 4 and 5 shampoo and conditioner for fine hair, but the benefits when used solo still stand. With the many hair-loving ingredients included here, this product is worth the price tag.
Reviewed by Lucy Smith
Key specifications
Buy now £30, Cultbeauty.co.uk
As I Am Jamaican black castor oil leave-in conditioner
.avif)
Best: leave-in conditioner for coils
Why we love it
- A little goes a long way
- Produces bouncy, voluminous, long-lasting and non-crunchy curls
Take note
- May cause a little tingling/itchiness for those prone to sensitivity
This Jamaican leave-in conditioner is a level up from the brand’s core conditioner. With the addition of castor oil, it promises to provide extra nourishment to damaged and dull strands. It left my curls looking defined without shrinkage, and I loved how it toed the line between adequate hold and minimal crunch. I saw zero stiffness in the strands, with added volume and bounce even after a full night’s sleep.
.png)
The formula doesn’t banish frizz entirely, but it does maximise the appearance of length. I did, however, notice some scalp irritation from the castor oil included in the formula.
Reviewed by Fionoloa Delaney
Key specifications
Buy now £7.48, Amazon.co.uk
K18 biomimetic hairscience leave-in molecular repair hair mask
.avif)
Best: leave-in conditioner for damaged hair
Why we love it
- Saves time in the shower
- Softens hair
- Leaves ends looking smoothed and freshly cut
Take note
- Expensive
- Can weigh down roots if overused
K18’s leave-in hair mask is another that’s been compared to Olaplex’s no.3 perfector. While both formulas rely on a patented ingredient, they both aim to rebuild bonds and broken strands.
I wanted to get to the bottom of the hearsay, and after several treatments, it’s hard to deny that it’s a game-changer. And K18’s formula is arguably easier to use. It’s a substitute for your normal rinse-out conditioner, so it not only minimises the number of steps in your routine, but requires half the amount of product. On the contrary, Olaplex’s no.3 requires you to rinse your pre-shampooed hair, apply the perfector and wait 10 minutes before you wash.
K18 isn’t just convenient. It delivers good results. My hair was left hydrated, and the breakage I normally see around the mid to end of the hair shaft appeared smoothed. I would, however, advise being conservative with the product and not using more than the recommended dose, as doing so causes product buildup at the roots.
The only downside is the inordinate price. Though the cautious dosing approach means you get a touch more value for money, it’s still not cheap to repurchase.
Reviewed by Lucy Smith
Key specifications
Buy now £30, Cult Beauty
Camille Rose Organics curl love moisture milk
Best: affordable leave-in conditioner for curly hair
Why we love it
- Works for most hair types, just use less/more as needed
- Versatile as a refresher on wet or dry hair, as well as on wash day
- Really affordable
- Lovely sweet scent
- Black- and women-owned brand
Take note
- Not suitable for those with nut allergies
If you’re looking for an affordable leave-in conditioner for curly hair, I’d recommend the Camille Rose Organics curl love moisture milk. Given that it’s such great value, you can use it more freely and reap the rewards. But its price isn’t the only thing that I love about it.
It’s an effortless lotion – a nice dollop slides through my hair with fingers alone and makes detangling with a brush a breeze. With fortifying macadamia seed oil, rice milk and elm bark extract, it’s a sweet-smelling burst of hydration and nourishment that feels like really great daily care for my 3c spirals. It dries remarkably light for how creamy it feels, balancing indulgent hydration with weightless feeling curls.
Reviewed by Elena Chabo
Key specifications
Buy now £11.99, Boots.com
Mielle white peony sulfate-free leave-in conditioner
.avif)
Best: for priming curls
Why we love it
- Creates a beautiful, glossy finish
- Prevents crunchiness
- Helps other styling products absorb better
- Moisturises without weighing down curls
- Tames frizz
Take note
- Spray nozzle is awkward at first
- Those with moderate sensitivity may see irritation from fragrance
Mielle’s leave-in conditioner is a lightweight wonder that is great for priming curls. It leaves hair soft, shiny and full of bounce – never greasy or heavy.
.png)
I use it as a curl primer because it creates a hydrated, silky base that enhances other styling products and prevents the dreaded crunch that other gels or mousses often leave behind. It also effectively tames frizz (especially when used alongside a diffuser) and adds a glossy finish that makes my curls look healthier and more defined.
For ‘curly girls’ seeking moisture, shine and softness without weight, this one’s a no-brainer.
Reviewed by Ella Duggan
Key specifications
Buy now £14.65, Amazon.co.uk
Ouai leave-in conditioner and heat protectant spray
.avif)
Best: for all-round hair care
Why we love it
- Long-lasting scent
- Eases detangling and smooths
- Lightweight
Take note
- Scent may be too sweet for some people
Ouai’s leave-in conditioner does an excellent job at all-round hair care. It packs a nourishing punch and leaves hair feeling healthier. For me, this was obvious in the smoothed appearance of fraying strands and in the hydration and shine from root to tip.
The scent is north Bondi, which the brand says features notes of raspberry, apple blossom and sandalwood. To me, it smells like chewy sweets and is surprisingly long-lasting, though I can see how it might clash with a rich or mature perfume.
Much like the Davines formula, Ouai’s leave-in conditioner is a great multi-purpose pick and, thanks to added heat protection, keeps hair soft and non-brittle, even after blow-drying and curling.
Reviewed by Lucy Smith
Key specifications
Buy now £26.35, Amazon.co.uk
Redken acidic bonding concentrate leave-in treatment
Best: bond repair leave-in conditioner
Why we love it
- Pleasant, candy-like scent
- Dries down into hair without a greasy residue
- Eases detangling
Take note
- Dryer hair types might want to layer with an oil for extra moisture
Redken’s acidic bonding leave-in treatment has gone viral on TikTok for delivering noticeable xx to hair – and rightly so. Having used this on my brittle, frayed and dry ends, I found it visibly improved the appearance of breakages and, with repeated use, my hair looks glossier overall.
As for the formula itself, it’s relatively lightweight and has a serum-like feel. A little goes a long way, and my fine-to-medium-thick hair needed just a 50-pence piece worth of formula to saturate the mid-lengths and ends.
I can’t promise the results would hold up if I stopped using the cream, but I’m pleased to see the positive change nonetheless – and the less than £30 price tag seems reasonable for the speed at which you see improvements (around two weeks).
Reviewed by Lucy Smith
Key specifications
Buy now £21.6, Lookfantastic.com
Color Wow dream cocktail carb-infused leave-in thickening treatment
.avif)
Best: leave-in conditioner for fine hair
Why we love it
- Starch adds weightless thickness to limp strands
- Leaves hair soft and smoothed
- Strengthens hair
Take note
- Doesn’t detangle
The formula impressed me after just one wash. Despite the thin, clear, serum-like consistency, it left my blow-dried hair looking hydrated, lifted and bouncy. However, the formula is heat-activated, so it proved to be an ineffective detangler on wet hair. It’s probably not a good fit for curly hair types who only brush their hair when wet.
It uses a unique hair ‘filler’ made from cellulose, starch and oat bran. These ingredients add mass to every strand, but unlike the powdery or cloying feel of a dry shampoo or texture spray, Color Wow’s cocktail is weightless and undetectable. You’ll simply notice boosted volume from root to tip – no complaints here.
Reviewed by Lucy Smith
Key specifications
Buy now £25, Amazon.co.uk
Cécred moisture sealing lotion
Best: all-in-one leave-in conditioner
Why we love it
- A little goes a long way
- Hydrating but not heavy
- Luxurious fragrance
Take note
- On the pricier side
Cécred has done more than prove itself when it comes to product quality and brand authenticity. This is no celeb money grab; the products are doing the talking, and despite being infamously fussy, I am impressed. The moisture sealing lotion feels like a one-and-done, meeting the demands of a leave-in conditioner, a curl cream and an oil. Though it’s not cheap at £35, I only use about a third (or less) of the product I typically use with competitor brands, so it’s comparable to a £12 product.
A tiny squirt of product is all that’s needed to spread through and detangle hair with ease. Even when I’ve used too much, it never overloads or weighs down the curls, leaving them soft and fluffy with an impressive glossy sealed look – especially considering it’s silicone-free.
Scent is big for me, and with notes of oud, sandalwood and musk, it smells more like a luxe unisex fragrance than a hair product.
Reviewed by Elena Chabo
Key specifications
Buy now £35, Cecred.com
Cantu weightless 15+ benefits daily leave-in
.avif)
Best: for low-maintenance coil styling
Why we love it
- Plenty of beneficial ingredients
- Lovely bitter orange and eucalyptus scent
- Lightweight
- A little goes a long way
Take note
- Doesn’t banish frizz entirely
Much like its original leave-in formula, Cantu’s weightless range sets out to combat frizz and, in this featherlight consistency. I found it was easy to distribute through my coily 3C/4A hair for low-maintenance coil styling. I loved the lustrous appearance of my curls and, while the leave-in formula didn’t defrizz entirely, it made for defined coils.
.png)
Other selling points include its price, scent (which comes from bitter orange and eucalyptus) and the fact that it leaves no greasy residue on your hands after use.
Reviewed by Fionola Delaney
Key specifications
Buy now £7.2, Amazon.co.uk
Your questions about leave-in conditioners answered
What is the best leave-in conditioner?
Davines’ OI all in one milk is the best leave-in conditioner. It’s the formula that proves just how effective a leave-in conditioner can be. In testing, it somehow balanced a lightweight feel with deeply nourishing results, all while smoothing frizz, boosting shine and improving my hair’s overall manageability. It also performed just as well on air-dried hair as it did prior to heat styling, making it a versatile, low-effort addition to any routine.
Of course, that’s not to say the rest didn’t hold their own. Curl-focused options from Moroccanoil and Camille Rose Organics also impressed for the definition and hydration they gave our testers’ ringlets, and As I Am earned the top spot for coily hair after leaving Fionola’s strands looking bouncy even after sleeping.
What do leave-in conditioners do?
Hair stylist Patricia Davis explains that leave-in conditioners can be beneficial across four areas. They restore moisture and smooth and seal hair to reduce frizz and breakage. They protect against heat damage from hair tools and UV damage from the sun.
Scalp health expert trichologist Izabella Bordignon adds that leave-in conditioners help with detangling, and recommends picking a formula to suit your hair’s needs. She clarifies: “Hair health is shaped by internal factors like hormones and diet, and external factors like climate and styling habits. Understanding this and selecting ingredients that align with your specific goals is how you transform your hair care routine from generic to truly effective.”
How often should I use a leave-in conditioner?
“After every wash,” says Bordignon, but she adds that how much product you should use depends on your hair type and texture.
Davis advises those with coily hair to ensure full coverage when applying their leave-in, while Bordignon warns that those with finer strands might want to take a more cautious approach to avoid weighing down their hair at the roots.
Which ingredients are found in the best leave-in conditioners?
Bordignon and Davis have weighed in on the best components to suit every hair type and texture.
Are silicones in leave-in conditioners bad?
Bordignon says: “Silicones have been unfairly villainised in recent years.” She describes how “silicones aren’t inherently bad”, explaining that they “create a breathable barrier on the hair, which shields it from heat, humidity and pollutants”, while also being “effective for smoothing and adding shine”. However, she clarifies that for “individuals with fine, curly or low-porosity hair, or those committed to ‘clean’ routines, silicone-free leave-ins may be preferable for better absorption and lighter feel”.
As for claims of build-up and heavy roots, Bordignon says this “can occur with excessive use and insufficient cleansing, but is easily managed with a clarifying shampoo”.
How we tested and selected the best leave-in conditioners
Over a period exceeding two months (or, in the case of our favourite formulas, several years), Fionola Delaney, Ella Duggan, Elena Chabo and I set about testing more than 20 leave-in conditioners on sopping wet, damp and dry hair. During testing, we paid attention to our hair’s appearance after use, the ease of application, detangling, and any other benefits we felt. Our hair spanned from straight 1b/c to coily 4A hair, so we were able to see how a number of different conditioners catered to our hair’s varied needs. During testing, we paid close attention to several key criteria:
Why you can trust IndyBest reviews
As IndyBest’s resident beauty writer, Lucy Smith has covered everything from the best shampoos and conditioners to the best hair dryers. She’s spoken to hair stylists and trichologists, and she knows which brands offer good value for money.
Elena Chabo has been reviewing products for IndyBest for several years, covering everything from the Dyson airwrap I.D to her favourite curly hair products.
Ella Duggan is a certified ‘curly girl’ and has penned a range of reviews for IndyBest, including the best sulfate-free shampoos.
Fionola Delaney has coilier 3C/4A curls, and has also contributed to IndyBest’s guide to the best hair brushes. Here, the trio tested all of the top creams, milks and serums to discover the very best leave-in conditioners.
Meet the experts
Want more recommendations? We’ve found the best shampoos and conditioners for every hair type