Sleek Line Professional hair care line collections is manufactured in Europe, Poland. This collection is based on own original formula and dedicated to professional hairdressers. The quality of the production processes in confirming by independent and certificate ISO 9001-2015 and GMP systems, all products are created in the Research Development Department, all products are the highest quality they are effective and safe. All products are subjected to rigorous researches and laboratory tests. Make hair shine and look healthy.