This procedure is also known as lip injections and lip augmentation. Having full, plump lips is often considered a sign of good health, beauty and youth. Whether you were born with thin lips or your lips are thinning due to the natural ageing process, there are many ways to enhance them. Lip injections using natural or synthetic fillers can keep your lips plump for months at a time. Other options include lip lifts, Vermillion (lip) advancement and permanent makeup.