average cost of lip fillers
1 The usual cost of lip augmentation ranges from $300 to $5,000. 2  According to the website SmartPlasticSurgery.com, the price of collagen injections to be $333 each on average. Follow-up. 2  Keep in mind that lip injections do not last forever. 3  In fact, they can only last upwards of six months at most. 4  While follow-up treatments will not cost as much as the initial visit, they will still cost at least $200 to $300 per injection.