I Don't Have Time for a High-Maintenance Haircare Routine—This One Product Does It All

This is the product that started my leave-in conditioner journey after a recommendation from my hairdresser. It worked wonders when my hair was long, since my hair is also very thick—basically a recipe for tangles. With nourishing rice proteins and UV protection, it leaves hair smooth and knot-free immediately, and healthier in the long run. If you struggle to get a comb or brush through your hair after washing, this product will sort you out.

Ideal for those who battle breakage and snapping, this product utilises a powerful peptide blend to strengthen hair from its core. Over time, it repairs damage caused by bleach, colour and chemical treatments, including split ends, breakage, and colour fade.

Editor review: "K18's leave-in hair mask is by far the best leave-in treatment I've ever tried," says Eleanor Vousden, Who What Wear beauty editor. "You use it in place of conditioner on damp hair and it works by repairing hair on a molecular level, strengthening the hair shaft from the inside out. While it's expensive, a little goes a long way (one or two pumps is enough for my long and thick hair) and it really does work at repairing damage and fragile lengths. I see a noticeable difference in my hair's bounciness, shine and general health when I use it. Whenever I get balayage or overdo my hot brush, I always reach for this."

I've never met a Ouai product I haven't liked, and this leave-in conditioner is up there with the best—in fact, it's been my go-to since cutting my hair into a bob. It can be used on wet hair to detangle and strengthen, or when your hair needs a hydration boost, you can mist it onto dry hair to smooth things out and increase shine. Some leave-in conditioners can result in hair feeling heavy and coated, but this product isn't one of those.

Most leave-in conditioners come in a spray bottle like this one to make things easier and less messy. Not only does this product look great on the shelf, but it means serious business for drier hair types. Infused with honey to hold hydration, strengthen, soften,and fend off further damage, it ticks all of the boxes.

Editor review: "I love this leave-in conditioner from Gisou. I have very thick, dry hair, so I need a leave-in conditioner that really works, and this one makes my ends impossibly soft," says Who What Wear UK junior beauty editor, Grace Lindsay. "A little bit goes a long way, so I would recommend applying a small amount to start with and letting the product work its magic. The clever formula works to hydrate, detangle and protect your hair from heat, and I can't imagine my haircare routine without it."

Many of my curly-haired friends absolutely adore this leave-in conditioner thanks to its intense hydrating properties and for the fact that it doesn't cause curls to drop. In fact, it keeps them tight and buoyant. The spray applicator makes it easy to mist through lengths, so you can easily layer up the hydration when needed.

Formulated with fatty acids, coconut oil and emollients, this is next-level moisturising and also delivers major shine and gloss. Expect straight, smooth, and sleek hair with a glass-like finish. It's also a great choice for those with colour-treated hair too, plus the delicate coconut scent leaves your hair smelling delicious.

This formula is all at once conditioning, detangling, smoothing, and strengthening (I can definitely see it working for all hair textures), but the thing that really sets this above the rest is the mouth-watering smell. With a scent reminiscent of salted caramel, tropical fruit and beaming sun rays, your hair will smell like paradise all day long. If you love Sol De Janeiro's perfume mists, this is a must-try.

Sitting somewhere between a cream and a serum, this leave-in conditioner is basically a night cream for your hair. The rich formula is designed to repair and rejuvenate hair while you sleep, restoring softness, smoothness and shine. Think of this product as an intense hair mask with no rinsing required—plus, I find that the lightweight, fast-absorbing texture means it doesn't transfer to bedding and is suitable for nightly use.

With sweet almond oil, argan oil, shea butter and amino acids, this hardworking formula leaves hair feeling silky smooth while fortifying strands to protect against breakage and brittleness. A top tip? Keep this tube on hand for refreshing second- and third-day hair—it will help restore definition and bounce.