Wella Blondor Freelights 9%-30 Volume Oxidant Developer Oxidant Freelights white lightening developer is known for its precision and easy of application with less swelling. Contains hydrogen peroxide and flexible acrylic polymers. Available in vol. 20 – 6% (for gentle lift), vol. 30 – 9% (extra lift), vol. 40 – 12% (maximum lift). Use this for Couture Colour Service *This is a professional product and should be used only by a trained individual. Seller is not liable for any adverse outcome resulting from use of this product.