Pulp Riot semi-permanent colour Create original, colourful looks that your clients will love with Pulp Riot’s semi-permanent hair colour. The semi-permanent hair tint fades naturally over time, ensuring a rich, versatile vibrancy. Is Pulp Riot vegan? Yes, the vegan hair colour is also free from silicones, MEA and parabens. Enriched with quinoa seed, the conditioner-based formula offers a beautiful fragrance and exceptional conditioning shine that enhances the colour for a sleek, professional hair salon-quality finish. How to use Pulp Riot semi-permanent colour For best results, apply to clean, dry hair and process for 25 to 40 minutes before rinsing with cool water. Pulp Riot’s semi-permanent hair colour range offers easy application with results that last longer and fade better. Explore the full semi-permanent colour range here. How long does Pulp Riot last? Pulp Riot semi-permanent hair colour will last between 20 and 40 washes.