f(x)'s Krystal updated her fans.

On October 3, Krystal posted on her me2day, "I received my birthday presents now! Thank you. I'll use them wear them eat them watch them well. I'm happy hehe" along with a picture.

In the picture, Krystal is wearing no makeup, but her skin seems clear.

Internet users who saw this commented, "Her eyes are shining," and "Her skin is so clear."

Photo Credit: Krystal's me2day