Goldwell StyleSign Smoothing Serum Spray
Instantly creates long-lasting, silky-straight hair and eases the gliding of the flat iron while protecting the hair from frizz, humidity and heat damage up to 230°C/446°F
Key Benefits
- Delivers smooth, straight hair with a silky finish
- Reduces frizz caused by humidity
- Protects hair from heat damage up to 230°C/446°F
- Enhances flat iron performance for easier styling
Usage
Apply a small amount to damp or dry hair before styling with a flat iron. For best results, use on mid-lengths to ends.
| Feature | Detail |
|---|---|
| Heat Protection | Up to 230°C/446°F |
| Application Method | Spray directly onto hair |
| Best For | Curly, wavy, or coarse hair types |
FAQ
Can this serum be used on dry hair?
Yes, it can be applied to dry hair for smoothing and heat protection.
Does it work well with flat irons?
Yes, it eases the gliding of the flat iron and helps achieve smoother, straighter results.
Is it safe for color-treated hair?
Please contact customer service for information on color-treated hair compatibility.

Lucas Black –
I use this serum before straightening my hair every week. It makes my hair glide smoothly on the iron and stays straight longer. No more frizz after styling, even in humid weather. The spray is easy to apply and doesn’t leave a greasy feel.
Amanda McDonald –
Great product for reducing frizz. I applied it to my damp hair and straightened it with my flat iron. The results were noticeably smoother and more manageable. A little goes a long way.
Rebecca Sharp –
My curly hair has been a challenge, but this serum makes a big difference. After using it, my hair feels soft and stays straight for hours. I’ve used it with both low and high heat settings without any damage.