Dyson Chitosan™ Post-style serum should be applied on dry, styled hair to define your look.

Start with one or two pumps, sheer gently through palms and work through the hair with your fingers to smooth, define and enhance your style. Add more product as needed.

Less is more with our Post-style serum. We recommend starting with one or two pumps, building as needed for your hair.

Our Dyson-engineered applicator is rigorously tested to deliver the same amount pump after pump, so once you’ve established the right amount for your hair, you can count on your dosage, every time.

The Dyson Chitosan™ hair styling range is designed to prime and define your styles, for flexible all-day hold.¹ You can use the products together or separately, depending on your styling routine.

Use Dyson Chitosan™ Pre-style cream before styling, on towel-dried hair, to prime, hold and condition. Dyson Chitosan™ Post-style serum is designed for use on dry, styled hair to define, hold and hydrate your look. Each product has a range of key ingredients that support additional benefits to the hair, including less frizz, a conditioned feel, natural movement, smoothness and shine.

Dyson Chitosan™ Post-style serum has been developed for use on finished styles on all hair types, to give 2x longer hold¹, without crunch, brittleness or residue, for hair that looks and feels moisturised, soft and smooth. The Post-style serum is great for reducing frizz for a smooth finish, especially on straighter styles, or you can use the serum on natural curls and waves to add texture and definition.

The Dyson Chitosan™ Post-style serum has been engineered for all hair types to help your finished style feel moisturised, soft and smooth, with two-times longer hold.¹ It’s designed to be used on your finished styles.

Chitosan is the hero ingredient in our Dyson Chitosan™ hair styling range. Chitosan is a complex macromolecule derived from oyster mushrooms. This complex macromolecule helps create flexible bonds that support hair strand by strand, for flexible all-day hold¹, even in high humidity.² It’s the foundation of our Dyson Triodetic™ technology. Our key ingredient is also supported by oils for a formula that helps condition the hair surface, reducing frizz and giving a soft, shiny finish.

Yes. All our full-size formulation packaging is refillable. When you’re approaching the end of your original product, simply order a refill and follow the instructions on the cartridge to replace. Your used cartridge can be recycled at home (check local guidance). Buying a refill generates 76% less waste than buying a new parent pack (product packaging only).