L'Oréal Professionnel Vitamino Color Spectrum Glass Shine Serum is a professional heat-activated leave-in hair treatment specially formulated to enhance shine, smooth frizz and help protect all types of color-treated hair. Powered by innovative 5% Alpha-Silane technology, this lightweight, waterless serum creates a protective layer on the hair surface when activated by heat, delivering a glossy, mirror-like finish with improved smoothness and manageability. Designed for straight, wavy, curly and coily hair, it provides heat protection up to 450°F and helps protect colored hair against UV-related damage while maintaining natural movement and softness.

Part of the L'Oréal Professionnel Serie Expert Vitamino Color Spectrum collection, Glass Shine Serum delivers advanced protection against frizz, humidity and everyday styling stress. Its silicone-based formula uses heat-activated Alpha-Silane to smooth the hair fiber and create long-lasting glass shine. Manufacturer testing demonstrates anti-frizz benefits for up to 72 hours, humidity resistance in conditions up to 80% relative humidity and lasting conditioning benefits on tested hair attributes for up to 10 washes. Ideal for maintaining salon-quality color brilliance and smoothness, this professional leave-in serum helps leave hair looking glossy, vibrant, silky and beautifully polished.

Benefits

• Delivers instant mirror-like glass shine to color-treated hair
• Features patented heat-activated 5% Alpha-Silane technology
• Forms a protective smoothing layer on the hair surface
• Provides heat protection up to 450°F / 230°C
• Helps protect color-treated hair against UV-related damage
• Delivers anti-frizz benefits for up to 72 hours in manufacturer testing
• Provides humidity resistance in conditions up to 80% relative humidity
• Helps maintain smoothness, softness and manageability
• Offers lasting results on tested hair attributes for up to 10 washes
• Lightweight waterless formula with a smooth, glossy finish
• Helps control flyaways and reduce rough-looking texture
• Enhances the appearance of vibrant, radiant hair color
• Suitable for straight, wavy, curly and coily color-treated hair
• Designed for heat activation using professional styling tools
• Leave-in treatment requiring no rinsing

Suggested Use

• Wash and condition hair using the L'Oréal Professionnel Vitamino Color Spectrum system or other suitable color-care products.
• Gently towel-dry hair to remove excess moisture.
• Shake the Glass Shine Serum bottle thoroughly before each application.
• For fine to medium hair, apply 1 to 2 pumps.
• For thicker hair, apply 3 to 4 pumps as needed.
• Dispense no more than one pump at a time and warm the serum between your palms.
• Distribute evenly throughout the mid-lengths and ends, avoiding the roots.
• Use small sections if needed to ensure even application.
• Do not rinse out.
• Blow-dry hair until completely dry before using a flat iron.
• For optimal glass-shine results, finish with a flat iron according to the manufacturer's heat-activation directions.
• Use appropriate heat settings for the hair's condition and styling needs.
• Store the bottle in a cool, dry place and clean and lock the pump after use.