DysonChitosanPost-style Serum 100 ml

dyson chitosan
Double the lasting hold.¹ Instant hydration and shine.
Dyson Chitosan™ Post-style serum for flexible hold all day long.


¹Compared to untreated hair.

Crafted with Dyson's Triodetic™ technology
Flexible hold, supported by chitosan.

Post-style serum
Who is it for?
For all hair types.

Lock in your style and boost hydration, with instant definition and shine. Dyson Chitosan™ Post-style serum is engineered to offer twice the lasting hold¹, without leaving your hair feeling stiff or heavy. For hair that looks impeccably styled and feels deeply hydrated, soft, and supple.

¹Compared to untreated hair.

Natural strength
Chitosan is our powerhouse ingredient, a complex macromolecule extracted from oyster mushrooms. It's been rigorously tested to ensure the perfect balance for all-day flexible hold¹, with natural movement.
¹Compared to untreated hair.

Flexible hold
"This sophisticated macromolecule crafts flexible bonds that support each hair strand, laying the groundwork for our Dyson Triodetic™ technology.

*Visual representation."

Designed for performance
Hold. Movement. Shine. Dyson Chitosan™ Post-style serum delivers double the lasting hold¹, for instant hydration and luminosity.

¹Compared to untreated hair.

Key features
Hyaluronic acid
A skincare superhero, utilized in two molecular weights within our styling formula to ensure your hair stays hydrated.

Fragrance
Sparkling bergamot. Delicate florals. Warm cedar, moss, and musk.

Moisture-resistant
Proven effective at a relative humidity of 80%.

Styled with the Dyson Chitosan™ styling range
The model uses Pre-style cream Straight to wavy rich conditioning in her naturally straight hair. Styled with the Dyson Airstrait™ straightener and Dyson Chitosan™ Post-style serum.

Styled with the Dyson Chitosan™ styling range
The model uses Pre-style cream Straight to wavy light conditioning in her naturally wavy hair. Styled with the Dyson Airstrait™ straightener and Dyson Chitosan™ Post-style serum.

Styled with the Dyson Chitosan™ styling range
The model uses Pre-style cream Curly to coily rich conditioning in her naturally curly hair. Styled with the Dyson Supersonic™ hair dryer and Dyson Corrale™ straightener along with Dyson Chitosan™ Post-style serum.

How to use
Rub lightly between your hands and work through your hair with your fingers to smooth, define, and elevate your hairstyle.

Refill and reuse
All our full-size formula products are designed to be refillable and durable. When your product is nearly out, simply order a refill and follow the instructions on the container for an easy swap. Your empty container can be recycled at home. (Check local guidelines.)

Technical beauty
Our engineers have crafted a variety of formulations that extend the life of your hairstyle. Ingredients are meticulously tested and chosen for each formula to ensure a flexible hold without the stiffness.

Developed in tandem with Dyson's hair care devices
Our formulas are developed in close collaboration with our hair care devices, creating products that cater to all hair types and styling routines.

Frequently asked questions
Is Dyson Chitosan™ Post-style serum the right product for me?
"Dyson Chitosan™ Post-style serum is formulated for all hair types, aiming to keep your finished style feeling hydrated, soft, and smooth with twice the lasting hold.¹
It's specifically designed for use on your final looks."
¹Compared to untreated hair.
What’s the difference between Dyson Chitosan™ Post-style serum and Pre-style cream?
"The Dyson Chitosan™ styling range is crafted to prep and define your hairstyles for flexible hold throughout the day.¹ Mix and match the products based on your styling needs.
Apply Dyson Chitosan™ Pre-style cream to towel-dried hair before styling to prep, hold, and nourish. Dyson Chitosan™ Post-style serum is meant for dry, styled hair to define, hold, and hydrate your look. Each product boasts key ingredients that offer extra benefits like reduced frizz, a softer feel, natural movement, smoothness, and shine."
¹Compared to untreated hair.
How do I use Dyson Chitosan™ Post-style serum?
"Apply Dyson Chitosan™ Post-style serum to dry, styled hair to perfect your look.
Begin with one or two pumps, rub gently between your palms, and work through your hair with your fingers to smooth, define, and boost your hairstyle. Add more product as needed."
How long does the style last?
Dyson Chitosan™ Post-style serum is designed for flexible hold throughout the day, helping your favorite styles endure longer, even in high humidity.³
³Compared to untreated hair. Tested at a relative humidity of 80%.
What are the main ingredients in our Dyson Chitosan™ Post-style serum?
Chitosan, the star ingredient in our Dyson Chitosan™ styling range, activates our Triodetic™ technology to form flexible bonds that support each hair strand, ensuring all-day flexible hold with natural movement, even in high humidity.³ Our Post-style serum also includes hyaluronic acid, renowned for its moisturizing benefits.
³Compared to untreated hair. Tested at a relative humidity of 80%.
Should my hair be damp, wet, or dry before I use my Dyson Chitosan™ Post-style serum?
Dyson Chitosan™ Post-style serum is best applied to dry, styled hair. Use your fingers to work through your hair, smoothing, defining, and enhancing your look.
How much should I use?
"With our Post-style serum, a little goes a long way. Start with one or two pumps and adjust as needed for your hair type.

Our Dyson-engineered applicator is rigorously tested to dispense a consistent amount with each pump, ensuring you get the perfect dose every time."
Is Dyson Chitosan™ Post-style serum refillable?
Yes. All our full-size formula packages are refillable. When you're running low, simply order a refill and follow the container instructions for an easy replacement. Your empty container can be recycled at home. (Check local guidelines.)
Is Dyson Chitosan™ Post-style serum safe to use on colored and chemically treated hair?
Absolutely. Our Dyson Chitosan™ styling range is safe for use on bleached, colored, and chemically treated hair.