Goldwell StyleSign Smoothing Serum Spray — Color-Safe Heat Protectant (230°C), Vegan High Shine

Goldwell StyleSign Smoothing Serum Spray is a lightweight, color-safe spray that creates long-lasting silky-straight hair while protecting from frizz, humidity and heat up to 230°C/446°F.

Designed to work with blow dryers and flat irons, this smoothing serum spray combines Marine Bamboo extracts and a silicone-free, vegan-friendly formulation to improve glide, boost shine and reduce breakage during styling. The spray offers maximum shine (level 3/3) with no hold (0/5), making it ideal when you want smooth, flexible hair without stiffness. It is dermatologically tested, free from sulfates and mineral oil, and the production is climate compensated.

How does this serum spray protect hair from high heat tools?

The formula builds a protective layer that helps the flat iron or blow dryer glide more smoothly, reducing friction and mechanical stress. Tested to protect hair exposed to styling temperatures up to 230°C/446°F, it helps limit breakage and heat-related roughening of the cuticle.

• Heat protection up to 230°C/446°F
• Improves tool glide to reduce mechanical damage
• Clinically designed to decrease breakage during styling (up to 83% less)

Will it control frizz and hold styles in humid conditions?

This spray helps shield hair from moisture in the air that causes frizz while preserving a silky, smooth finish. Because the product provides high shine without stiffness, styles stay soft and natural-looking even in damp weather.

• Frizz and humidity protection for sleeker results
• Delivers maximum shine level 3/3 for glossy hair
• Leaves hair flexible — no crunchy or stiff residue

Is it safe for color-treated and sensitive scalps?

Yes — the spray is color-safe and dermatologically tested, formulated without sulfates and mineral oils. The vegan formula contains no animal-derived ingredients, making it suitable for many haircare routines that prioritize gentle, cruelty-free products.

• Color-safe formula maintains hair tint integrity
• Dermatologically tested for scalp compatibility
• Sulfate-free and mineral-oil-free; vegan ingredients

How do I use the Smoothing Serum Spray for best results?

Apply on dry hair from 20–30 cm away, then comb through to distribute evenly before blow-drying or flat-ironing. The spray is optimized for styling: it eases tool glide and finishes with brilliant shine without changing your style’s movement.

• Spray onto dry hair from 20–30 cm distance
• Comb through, then blow-dry or flat-iron as usual
• Best used when aiming for silky, straight styles with high shine

Who is this for: Goldwell StyleSign Smoothing Serum Spray suits anyone seeking smoother, shinier hair when using heat tools — from clients and stylists to at-home users with all hair textures. It’s particularly helpful for people who want strong heat protection, frizz control and a glossy finish without added stiffness, and for those who prefer sulfate-free, vegan and climate-compensated styling products.

Ingredients

Trisiloxane, Dimethicone, Alcohol Denat., Caprylyl Methicone, Caprylic/Capric Triglyceride, Himanthalia Elongata Extract, Fragrance/Parfum, Alpha-Isomethyl Ionone, Limonene, Linalool.