"The purposes of this campaign are to expand recognition of hair growth tonic KAROYAN.

Men with thinning hair tend to prefer crosswords, and crosswords are effective for anti-thinning.

The crossword is made of 60,000 words with 150,000 squares which are related to hair restoration and effects of the product. KAROYAN is created with HTML5 and compatible with multiple devices.

The website recorded over 300,000 hits on the opening day alone and over 100 media covered the campaign.

“KAROYAN” was registered on the Guinness World Records™ as the world’s largest crossword in 2012.

'Karoyan' is designed as a person’s head looking down on a crossword puzzle board with each square being a hair follicle on the head. 'Karoyan' is a web promotion that expresses the process of hair restoration by turning the squares black as each clue is solved, namely, gradually darkening the hair follicles. The objective is to increase awareness to the much shied-away-from topic of hair restoration agents through a common and casual game, such as the crossword puzzle.

The website recorded over 300,000 hits on the opening day alone and over 100 media covered the campaign. 'Karoyan' was registered on Guinness World Records as the world’s largest crossword in 2012.