OEM Approved Cheap Ammonia Free Hair Color Dye Shampoo Black Shampoo

OEM Approved Cheap Ammonia Free Hair Color Dye Shampoo Black Shampoo. Ammonia-Free Formula: Low ammonia content with natural plant essences to reduce hair damage and protect hair health. OEM/ODM Customization: Full customization support for formula, color, fragrance, packaging, and private label services. Long-Lasting Color: Unique permanent formula with stable ingredients that lock color factors in the inner layer of hair. High Production Capacity: Monthly output exceeds 3 million units with 15 production lines and 100,000-class dust-free workshop. International Certifications: Certified with GMPC, ISO 22716, ISO 45001, and ISO 9001:2015 for quality assurance. Free Sample Availability: Free samples provided; courier fee is refundable upon placing a formal order. Fast Bulk Delivery: Bulk order delivery time ranges from 3 to 15 working days depending on production season. Comprehensive Quality Control: Strict pre-production sampling and final inspection before shipment to ensure product quality.