Derella Keratin Hair Mask

A keratin hair mask from the Spanish brand Derella, with a plant-based formula designed to make hair smoother. It contains keratin extract that strengthens and straightens hair. Directions for use: After washing your hair, apply a moderate amount of the mask from scalp to ends. Leave it on for 10-30 minutes, depending on your hair's needs, then rinse with lukewarm water.