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Best Shampoos September 2026

Finding the right shampoo depends on your hair type, scalp needs, and styling routine. This independent guide compares top-rated options across formula types, bottle sizes, and specific hair benefits to help you choose the best fit.

Last updated: 1 September 2026

  • K18Hair AirWash Dry Shampoo 118ml climbed 2 positions

  • Olaplex No.4 Bond Maintenance Shampoo 250ml dropped 2 positions

  • Redken All Soft Shampoo 500ml dropped 1 position

Shampoos: Top 5

K18Hair AirWash is a dry shampoo designed to refresh hair and add volume without water. It suits all hair types, including oily and damaged hair, with a vegan, sulphate-free, and silicone-free formula.

Yes, it is formulated to absorb excess oil and add volume at the roots between regular washes.

Pros

  • Waterless dry shampoo formula

  • Adds volume while absorbing oil

  • Vegan, sulphate-free, silicone-free

  • Suitable for all hair types

Cons

  • Small 118ml bottle size

  • Does not replace a wet wash

Olaplex No.4 Bond Maintenance Shampoo delivers bond-repairing care in a large 1,000ml salon-size bottle. It works to smooth, hydrate, and restore strength to damaged or colour-treated hair.

The 1,000ml bottle offers better value per millilitre if you already use this shampoo regularly in your routine.

Pros

  • Generous 1,000ml salon size

  • Repairs and strengthens bonds

  • Moisturising and smoothing formula

  • Vegan and sulphate-free

Cons

  • Bulky bottle for travel

  • Higher upfront purchase cost

Olaplex No.4 Bond Maintenance Shampoo in a 250ml format provides bond-restoring care in an everyday bottle size. Its sulphate-free and silicone-free formula cleanses while smoothing frizz and enhancing shine.

It shares the same bond-repairing formula but comes in a smaller, lighter bottle that is easier to handle.

Pros

  • Convenient 250ml travel-friendly size

  • Repairs damaged hair bonds

  • Silicon-free, sulphate-free, and vegan

  • Dermatologically tested formula

Cons

  • Needs more frequent repurchasing

  • Higher cost per millilitre than 1,000ml

Redken Acidic Bonding Concentrate Shampoo focuses on intense repair and smoothing for damaged or colour-treated hair. The sulphate-free formula strengthens hair bonds while helping to condition and tame frizz.

Both focus on bond repair for damaged hair, but Redken also offers eco-friendly refillable packaging options.

Pros

  • Targeted bond repair for damaged hair

  • Sulphate-free cleansing

  • Refillable packaging options

  • Smooths and conditions hair

Cons

  • Not listed as vegan

  • Aimed mainly at compromised hair

Redken All Soft Shampoo is designed to hydrate, soften, and add shine to dry or brittle hair. Its 500ml bottle provides ample quantity for regular use, leaving hair feeling smoother and more manageable.

All Soft focuses on moisture and softening dry hair, whereas Acidic Bonding Concentrate targets structural bond repair.

Pros

  • Generous 500ml mid-size bottle

  • Delivers deep moisture and shine

  • Cruelty-free and paraben-free

  • Softens dry and brittle hair

Cons

  • Formula contains sulphates

  • Rich formula may weigh down fine hair

Compare specifications

TypeDry shampooSilver shampoo, 2in1 shampoo, Gel / Liquid shampoo2in1 shampoo, Gel / Liquid shampoo2in1 shampoo, Gel / Liquid shampoo2in1 shampoo
Hair typeNormal, Colour treated, Fine, Blond/highlighted, Mixed, Grey/White, Curly/permed, Frizzy, Coarse/thick, AllNormal, Colour treated, Fine, Blond/highlighted, Mixed, Grey/White, Curly/permed, Frizzy, Coarse/thick, AllNormal, Colour treated, Fine, Blond/highlighted, Mixed, Grey/White, Curly/permed, Frizzy, Coarse/thick, AllColour treated, Grey/White, Curly/permedNormal, Curly/permed, All
Suitable forWomen, MenWomen, MenWomen, MenWomen, MenWomen, Men
ClaimsVegan, Cruelty free, Paraben free, Silicon free, Sulphate freeVegan, Cruelty free, Paraben free, Sulphate freeVegan, Cruelty free, Paraben free, Silicon free, Sulphate free, Dermatologically testedSulphate freeCruelty free, Paraben free
Hair conditionOily hair, Damaged / Dry hairOily hair, Damaged / Dry hairOily hair, Damaged / Dry hairDamaged / Dry hairDamaged / Dry hair
EffectVolumizingMoisturising / Softening, Smoothing, RepairingVolumizing, Shine Enhancing, Moisturising / Softening, Smoothing, RepairingSmoothing, RepairingShine Enhancing, Moisturising / Softening, Smoothing

How we create the list

The ranking is updated monthly and is based on data we collect from our own platform. Products that rank highly are popular among our users while also maintaining high quality according to editorial expert assessments. Specifically, we weigh how many users follow the product via price alerts or lists, how it is rated by experts and users, as well as how much traffic it generates to stores and how well it is represented in retail. The texts on this page are AI-generated and created to give you a quick and clear overview. No products are paid placements – the ranking is driven solely by data.