L'Oréal Professionnel Paris Glass Shine Serum for Color-Treated Hair — Heat Protection to 450°F, Anti-Frizz

L'Oréal Professionnel Vitamino Color Spectrum Glass Shine Serum is a leave-in treatment that instantly creates glass-like shine while protecting color-treated hair from UV, humidity, frizz, and heat up to 450°F.

This lightweight serum is formulated with 5% Alpha-silane to smooth the hair surface, lock in color vibrancy, and deliver lasting shine for multiple washes. Designed for use on colored and highlighted hair, the formula aims to reduce frizz, resist humidity, and provide thermal protection during styling. It’s applied on damp or dry hair and works as a finishing product to enhance smoothness and reflectivity without weighing strands down.

How does this serum improve shine and manageability?

The Alpha-silane complex creates a reflective, sealed surface on each strand that increases shine and makes hair feel smoother to the touch. By smoothing raised cuticles, the serum reduces friction and tangles, which improves combability and styling control.

• Instant glass-like gloss for visibly shinier hair
• Smoother cuticle appearance for easier detangling
• Lightweight texture that doesn’t leave residue or heaviness

Will it keep my color looking fresh and protected?

The formula includes filters and protective agents that shield dyed hair from environmental stressors, helping color retain vibrancy through daily exposure. The brand reports extended color care effects across several washes when used as directed.

• Protects against UV-related color fading
• Helps maintain color intensity up to multiple washes
• Minimizes color dulling from humidity and external aggressors

Can I use it before heat styling and in humid conditions?

Yes—this serum offers thermal protection rated up to 450°F, making it suitable as a pre-styling shield for blow-drying, straightening, and curling. It also provides anti-frizz and anti-humidity benefits, helping styles hold in damp or muggy weather.

• Heat protection up to 450°F for styling tools
• Anti-frizz performance lasting up to 72 hours
• Humidity resistance designed for up to 80% humidity

How should I apply it and how often?

Dispense a small amount into hands, emulsify, and distribute evenly through mid-lengths to ends of towel-dried or dry hair. Use a light touch—start with a pea- to dime-sized amount and increase for thicker hair; reapply sparingly to dry hair to tame flyaways or boost shine.

• Apply to damp hair before styling or to dry hair as a finishing touch
• Concentrate on mid-lengths and ends, avoid roots to prevent buildup
• Use after every wash or as needed between styles for shine and frizz control

Who is this for: This serum is aimed at people with color-treated, highlighted, or chemically processed hair who want a lightweight finish that enhances shine, improves manageability, and offers heat and environmental protection. It’s suitable for all hair types looking to reduce frizz, boost color longevity, and add glossy polish without heavy oils or sticky residues.

Ingredients

1261065 - INGREDIENTS: DIMETHICONE • BIS-(MORPHOLINOMETHYL C1-4 DIALKOXYSILOXY) DIMETHICONE • BIS-CETEARYL AMODIMETHICONE • HEXYL CINNAMAL • CITRONELLOL • GERANIOL • LINALOOL • LIMONENE • BENZYL ALCOHOL • PARFUM / FRAGRANCE (F.I.L. N70047519/4).