Our team walks you through how Guangzhou Yisichen Daily Chemical Co., Ltd. produces professional hair lightening powder in a real factory setting. In this video, you'll see the full production process for Potassium Persulfate Hair Dye Bleach Powder with 9 levels of lift — from raw material handling and automated filling lines to lab testing and quality control. We also explain how the company's ISO 22716 and GMPC certifications support consistent output for international B2B buyers. A clear, practical look at what goes into every batch.