Best Shampoos of 2026

Ketoconazole is the reason this bottle exists. It's the only over-the-counter dandruff shampoo in this group built on 1% ketoconazole — the label claims the only one full stop — and it works by killing the Malassezia fungus behind most flaking rather than washing flakes off the surface. If your scalp is itchy and flaky and ordinary anti-dandruff shampoo has stopped helping, this is the pick that treats it as a condition.

We treat it as a treatment rather than a daily wash: a few uses a week, lathered and left a moment before rinsing, and the flakes are the first thing to go, the itch second. The fresh scent is unremarkable and doesn't linger, which for a medicated shampoo we count as a feature. Seven ounces sounds small until you realise you're using it twice a week rather than every morning.

The one thing to watch is shedding. If your hair starts coming out in noticeably bigger handfuls while you're using it, stop and ask a doctor rather than pushing through a bottle to see whether it settles.

A 2-in-1 earns its place for one specific reason: a regular conditioner can rinse away the anti-dandruff layer a shampoo leaves on the scalp. This one conditions without stripping that layer, so the 1% pyrithione zinc keeps working between washes — the label claims up to 72 hours. That's the difference between this and squeezing a separate conditioner into the same shower, and it's why this is the bottle that ends up in our gym bags.

On the hair it's more convincing than most of the category: it lathers properly, rinses without the greasy film that makes people distrust 2-in-1s, and leaves hair soft enough that you can skip the second step without regret. The conditioning side is real, though, and fine hair can go limp, so use less than you think and rinse a beat longer. The Classic Clean scent is the light, familiar one and it doesn't hang around.

Two shampoos here are built for color-treated hair, and the choice between them comes down to what you want a wash to feel like. Color Last is the low-pH one: it cleans without lifting the cuticle wide enough to let dye escape, which is the mechanism behind every color-safe claim worth paying for. Pureology Hydrate, the other, is sulfate-free and creamier; this is the sharper, more thorough cleanse of the two.

Soybean oil handles the moisture side, and softness is where it's strongest — hair comes out smooth and combable rather than squeaky. It's concentrated enough that a small amount lathers a full head, and a bottle runs for months. The 'up to 40 washes' of vibrancy on the label is a system claim, though: it assumes the Color Last conditioner, so don't expect the shampoo alone to hold color that long.

Our read is that this is the color pick for hair that's normal to oily at the root, or for anyone who wants a genuine clean rather than a co-wash. If your color sits on dry, porous, over-processed hair, the extra moisture in Pureology buys you something real. And the scent survives blow-drying, which is a small thing until you've paid salon money for a shampoo you can't smell an hour later.

A small bottle that expects to last months is a different proposition from a big one that expects to be replaced. No. 4 is highly concentrated: the lather comes from coconut oil-derived surfactants, a small amount covers shoulder-length hair, and the bottle outlasts its size by a wide margin.

What it does well is the damaged-hair middle ground. It cleans without the squeak of a clarifying wash, detangles while wet, and leaves hair smooth enough that a brush goes through without a fight. The label's numbers — 90% smoother, 49% less breakage — are measured using No. 3 and No. 5 alongside it, so read them as a system result rather than something the shampoo does alone.

Hair type decides whether this is worth it. Fine, easily weighed-down hair doesn't need bond repair and can end up flat and faintly coated; coarse, bleached, heat-styled hair is exactly who this was built for. It also builds rather than arriving at once — the first wash is unremarkable, and the difference shows up after a few weeks of use.

So we think of it as a treatment you happen to wash with. The premium price is the entry fee and the concentration is what makes it defensible: if your ends are snapping and everything else feels like it's coating the problem, this is the bottle to spend on. If your hair is healthy and fine, you're paying for repair you don't need.

The tingle is the product. Tea tree, peppermint and lavender land on the scalp as a cold, clean rush that lasts a minute or two after rinsing, and it's the reason people who use this keep using it — including us, on the days a wash needs to feel like it did something.

Underneath the sensation it's a straightforward deep-clean shampoo, and that's where it earns its place in this group: oily roots, product buildup and post-gym hair come out properly clean, and the clean lasts a day longer than it does with a moisturizing wash. It's not a hydrating formula, so dry ends will still want conditioner, and the tingle is doing nothing for them.

No silicones, no parabens, and a bottle made from recycled plastic: Pure Clean is the pick for hair that feels weighed down rather than damaged. Silicone-free matters more than it sounds. Those smoothing ingredients coat the strand, which is wonderful for shine and terrible if your hair is fine and goes limp by mid-afternoon.

In use it's a proper lather and a squeaky rinse, the kind that makes the residue claim on the label believable. Aloe with vitamins B3 and B6 keeps it from feeling like dish soap, and fine hair comes out with body and shine instead of a halo of frizz. The scent is light and fresh, the sort most people like and nobody remembers an hour later.

What it won't do is moisturize. On dry, coarse or bleached hair it's simply too thorough, and the ends will feel like they need the conditioner you were trying to skip; the sweet spot is fine-to-medium hair with an oily root. It's also the easiest bottle here to buy on a whim and not regret, which counts for something in a category full of expensive disappointments.

Hydrate is the most divisive bottle in this group, and the split is the scent. It's strong and cool, closer to mint and herbs than to flowers, and it's the first thing anyone notices about the wash. That's a pity, because what sits underneath is the only sulfate-free formula here, and a good one.

Sulfate-free isn't a virtue on its own. It matters when you're protecting color, a keratin treatment or curls that frizz at the first harsh wash, and Hydrate cleans gently enough for all three. Rose extract and green tea are the headline ingredients, the 3x moisture claim shows up in how hair feels afterwards, and nothing is left coating the strand.

It behaves like a salon product in the other sense too: thick, low-lathering and slow, so you use more than you expect and the bottle goes faster than the size suggests. Hair that's dry or colored comes out soft and detangled; hair that's normal and oily comes out much the same as it would from a far cheaper wash.

So the question isn't whether it's good — it is. It's whether your hair has a reason to need a sulfate-free wash in the first place. If it's colored, chemically straightened or dry enough that a gentle cleanse makes a visible difference, this is the one we point to and the scent becomes a detail you either love or learn to live with.