Lion is a big company in japan. Their products are mainly toiletries, cosmetics and hair loss products.
There are hundreds of hair loss treatments in Japan but nothing has worked that well and this is just another one of them.
Unfortunately, the effectiveness of it would be no where near minoxidil. Many people on japanse hair loss forums believe that finasteride and minoxidil are the best treatments available now.
Like someone said, if it's really effective, it'll reach markets in overseas, just like minoxidil and finasteride reached japanese market.