If your shower screen or door is covered in old products, such as shampoo and conditioner, or body fat then follow this guide:
1. Get a bottle of Vitalise, which is a daily cleaner and maintainer that can control body fats and water scale.
2. Dilute Vitalise with water, and place in a trigger spray.
3. Spray Vitalise onto your shower screen or door, and leave for a few moments for the acidic product to react with the body fat and other products.
4. Once Vitalise has had enough sufficient time to react with the shower screen, agitate the product with a cloth, and rinse with water.