Does Kissing Distort the Appearance of Restylane or Make the Product Break Down ?

While you may have some slight bruising and soreness after lip augmentation with Restylane or Restylane Silk, as soon as you're lips feel ready, you can go ahead and kiss! I would recommend waiting about 2 days to let things settle down. The filler will not be displaced by kissing, any more than it would be by talking, expressing, etc. It should last about 12 to 18 months, depending on your metabolism.

After a few days, the Restylane should be set that it won’t be displaced by kissing or applying other pressure on the lips. I don’t think Restylane can be broken down faster by kissing, but it can be broken down faster with lots of movement (that includes talking, eating, and other mouth actions).

There is no evidence that kissing activity will negatively affect the result of lip augmentation with Restylane or Juvederm filling of the lip.  MOst people should not immediately kiss and let the needle insertion sites seal over and many apply ice for a couple of minutes after to reduce swelling.  Kissing in the first few hours might increase the swelling but when your lips feel comfortable you should feel no hesitation to kiss.