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Frequently asked questions

How do I refill my Dyson Chitosan™ Post-style serum?

You can change your refill using the following simple steps: 

Step 1) Remove lid from your original bottle.

Step 2) Carefully twist the reusable pump to detach the outer sleeve.

Step 3) Unbox the new refill cartridge and remove the cap and foil seal.

Step 4) Recycle your used cartridge and cap together in your household recycling.

Step 5) Lastly, screw the reusable pump onto your new cartridge. Reattach the outer sleeve and lid.

Is this refill recyclable?

Yes, your Dyson Chitosan™ refill is recyclable. You can simply recycle the cartridge at home.

Should my hair be damp, wet or dry before using my Dyson Chitosan™ Post-style serum?

Dyson Chitosan™ Post-style serum should be applied on dry, styled hair. Work through your hair with your fingers to smooth, define and enhance your style.

How long should my Dyson Chitosan™ Post-style serum refill last?

Our precision applicator produces a precise 0.22ml dosage per pump which means your product will deliver over 400 pumps before you’ll need to order your next refill.

How quickly you get through your refill will depend on factors including your hair type, hair length, density, thickness, condition and how often you style.

  • 1 vs. untreated hair.
  • 2 Tested at relative 80% humidity.
  • 3 vs. untreated hair. Tested at relative 80% humidity.