Vitamino Color Spectrum Professional Glass Shine Serum by L’Oréal Professionnel, enriched with 5% Alpha-silane and water free.  

Our leave in serum locks in glass shine for up to 72 hours* with results that last up to 10 washes**. Formulated without water, Alpha-silane is an active care ingredient that coats the hair cuticle surface with a protective layer when activated by heat.  

The result: 

- Protection against UV damage***

- Anti-frizz*** & Anti-humidity*** (up to 80% humidity in the air).  

- Heat protection up to 230°C  

Proven efficacy on the 5 colour dimensions****: 

1. Shine: High Glass shine  

2. Vibrancy: Rich, vibrant colours 

3. Contrast: Optimal perception between multiple shades 

4. Tone: Helps neutralise unwanted reflects 

5. Brightness: Level of brightness and darkness are well preserved 

The serum has a liquid texture: do not apply more than one pump at a time and section the hair beforehand if necessary.  

How to use:

Shake before use. After the full Vitamino Color Spectrum routine, apply on clean, towel-dried hair. 1-2 pumps for thin to medium hair, 3-4 pumps for thicker hair. Distribute evenly over the lengths and ends. Do not rinse. Dry hair completely with desired drying techniques.  

[For optimal result]: use with heating plates working at 180°C minimum. Once hair is dried, straighten hair with a straightening iron. Designed for use with a straightening iron. 

*Up to 72h after application, instrumental test vs unwashed hair 

** Anti-frizz, thermoprotection, nourishment, smoothness, softness up to 10 washes, instrumental tests vs sensitised hair 

***Instrumental test 

****Instrumental test after continued use of the full Vitamino Color Spectrum routine