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- – 6-month term
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Extended holiday returns
FREE refund/replacement until Jan 31, 2027 Learn more
FREE refund/replacement until Jan 31, 2027 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2027
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Thursday, Nov 12
Recently Viewed
At a glance
- Condition
- New
- Configuration
- Standard Size
- Hair Type
- All
- Item Form
- Cream
- Liquid Volume
- 100 ml
- Material Type Free
- Silicone Free
Features 6
- Dyson Chitosan Post-style serum is a lightweight post-styling hair serum that provides flexible, all day hold for smooth, shiny, frizz-free hair.
- 2x longer hold with up to 50% less frizz.**
- Formulated for all hair types, this lightweight serum simultaneously Nourishes individual hairs, while locking their shapes with a flexible bond structure without compromising your hairs natural feel. For use on dry and styled hair to define style.
- Chitosan, derived from oyster mushrooms, creates flexible bonds that support the hair, strand by strand - protecting your styles from frizz, even in high humidity.**
- Contains amino acids to repair signs of surface damage and hyaluronic acid to reduce frizz caused by humidity, for softness and shine.
- Lightweight serum for even application to smooth, define, and enhance styles.
Description
Dyson Chitosan™ Post-style serum is a lightweight post-styling hair serum that provides flexible, all day hold for smooth, shiny, frizz-free hair. Formulated for all hair types. vs. untreated. vs. untreated hair. Tested at relative 80% humidity.
Specs 12
| Package Dimensions | 7.13 x 1.93 x 1.85 inches; 8.82 ounces |
|---|---|
| Manufacturer | Dyson |
| Product Benefits | Holds and hydrates your end style, for instant definition. Nourishes the hair surface, for smoothness up to 24 hours.** Flexible, all day hold.* Up to 50% less frizz.* Shields styles from up to 80% relative humidity. |
| Hair Type | All |
| Scent Name | Dyson signature fragrance. A unique and subtle blend of green and floral notes – sparkling bergamot, subtle florals, warming cedarwood, moss and musk. |
| Item Form | Cream |
| Liquid Volume | 100 ml |
| Number of Items | 1 |
| Unit Count | 3.38 Fluid Ounces |
| Brand Name | Dyson |
| UPC | 885609037035 |
| Material Type Free | Silicone Free |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Nov 12
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Learn more about financing & leasing here.
Top Amazon Reviews
makes cv hairy nice & shuny
I love this product. chitosen is good for the hair!
Reviewed in the United States on July 7, 2026 by Bonnie Millhone
Forget Post Style! This is the best blow dry crème I’ve ever used!
Believe it or not, I bought both the pre and post Dyson products, and I accidentally used this as the pre-style crème. What a happy accident!! My hair had bounce, volume, and when I used it I had people ask me if I had just had my hair professionally done. When I didn’t use it, or used another product, my hair just looked normal. I have thin, fine hair; but I have a lot of it and it can sometimes run on the frizzy side - but no more! I used the entire container, and I repurchased the post style product again for use when blow drying my towel-dryer hair. I haven’t used it as a post style crème, because I don’t need anything on my hair after I style it. It’s amazing and worth every penny. Don’t bother with the pre style product. This one is all you need.
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Reviewed in the United States on May 29, 2025 by Amazon Customer
Holds with amazing effectiveness
Shine, bounce, and softness in a hold? This is that miracle stuff that when you use it, it’s a bit of a sweet surprise to see how crazy great it works. It doesn’t seem to matter what the weather is outside, or how long my hair has been tucked into a surgical cap, my hair bounces right back to the style I wanted and love. How many products are out there that can really get rid of bad hair days? This was a first for me.
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Reviewed in the United States on January 21, 2026 by DW
Too expensive but works great.
I love this stuff, and it works great as my hair will tend to get static and dry from the air straight. However, it is so expensive it’s almost prohibitive.
Reviewed in the United States on June 29, 2025 by Mabilu
DEJA EL CABELLO GRASOSO
Carísimo y deja el cabello pesado y grasoso
Reviewed in the United States on December 23, 2025 by Ip
Not effective expensive hair product
I’m not impressed with this (expensive) product, or the pre-style serum. I see no improvement or benefit. If anything, it makes any styling you’ve achieved, via your Dyson, fall flat quickly. Save your money.
Reviewed in the United States on August 21, 2026 by shopninoregon
Made my hair shiny
I had a small sample from Dyson directly and then ordered the full size. Really like this product. It makes my dull, dry, coarse (“over a certain age”) hair look shiny. Doesn’t make my hair look oily. Only a small amount needed, so a great value for money.
Reviewed in the United States on October 17, 2025 by Kim T.
Dyson
Este producto es súper práctico para cuando quieres hacerte tus risos y que no pierdan la figura, súper recomendado mi gente 🥰
Reviewed in the United States on May 22, 2026 by Dayara