The serum has a liquid texture: do not apply more than one pump at a time and section the hair beforehand if necessary. Shake before use. After the full Vitamino Color Spectrum system, 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. Once hair is dried, straighten hair with a straightening iron. Designed for use with a straightening iron. For optimal result, use with heating plates working at 180°C minumum.
Precautions: Shake before use. Store in a cool and dry area. Clean and lock the pump after each use. In case of contact with eyes, rinse carefully with water. The evolution of fragrance over time is expected due to the potency nature of the ingredients, it is important to note that this change does not affect its efficacy.