DEVELOPMENT TIME: The development time for Platinium Plus - Platinium Ammonia-Free is a maximum of 50 minutes. Rinse: When the development time is complete, rinse thoroughly with warm water. Wash with L'Oréal Professionnel Post-Color Shampoo. Blond Studio Nutri-Developer 30-Volume is fully stabilized and buffered to ensure consistent, even lifting results. Its creamy texture and rich formula encourages gentle, controlled lifting action with up to 3+ levels of lift and is most often recommended for Balayage.