It is administered periodically, 1cc at a time. I've had it done 4 times now, and after the 3rd time, they said I could stop putting it in. However, after that, I got 1cc more to correct my nasolabial asymmetry, and at this time, I put a little bit into my nasolabial area to correct my asymmetry, and they said it was too much to put in, so I put the excess on both front cheeks under my eyes. . I feel like the appropriate dosage is naturally recommended. I am satisfied with both my nasolabial fold and under my eyes. It is said that the arm is moving, but it has been a little over a year since I first got it, and I don't know if it is moving. The director performs the treatment very meticulously and reflects your concerns.