Formal:
* 你嘅頭髮好靚 (nei ge tou fa hou leng): This is the most direct translation and is suitable for formal situations.
* 你嘅頭髮好靚麗 (nei ge tou fa hou leng lai): This emphasizes the beauty and elegance of the hair.
Informal:
* 你頭髮好靚 (nei tou fa hou leng): This is a more casual way to say it and is suitable for friends and family.
* 你頭髮好靚仔 (nei tou fa hou leng jai): This is a more playful way to say it, and is more suitable for close friends.
* 你頭髮好靚女 (nei tou fa hou leng ne): This is a more complimentary way to say it, suitable for women.
Other Options:
* 你嘅頭髮好吸引 (nei ge tou fa hou xi yin): This emphasizes the attractiveness of the hair.
* 你嘅頭髮好有型 (nei ge tou fa hou you hing): This emphasizes the style of the hair.
Tips:
* You can also use a different word for "beautiful" depending on the context, such as 迷人 (mei yan), 可愛 (ho oi), or 漂亮 (piao liang).
* It's always a good idea to use a friendly tone and smile when complimenting someone's hair.
Ultimately, the best way to say "your hair is beautiful" in Cantonese is the way that feels most natural and comfortable to you.