HOYU is the manufacturer of Japan's best hair colouring products. With the highest market share in the hair colouring market in Japan. For well over a century HOYU has been producing and selling reliable and high quality hair colouring products in more than 70 countries.

HOYU specializes in Dark/Black Hair and has collected an enormous amount of data over years in Japan and other parts of Asia. With years of research and making use of rich collection of data, Bigen™ creates the "Perfect" and Easy-to-use Hair colourant. You shall not only enjoy new exciting hair colours but also have fun in discovering creative ways to apply them! Bigen™ makes you look and feel beautiful!

These two goals of Bigen™ are achieved owing to the advance technological development of Bigen™ General Research Institute (G.R.I.), uncompromising production systems and substantial monitor testing.