Related Experiment Video
Updated: Aug 13, 2026

Synthesis of Soft Polysiloxane-urea Elastomers for Intraocular Lens Application
Published on: March 8, 2019
Lip augmentation with liquid silicone
James E Fulton1, Serban Porumb, John C Caruso
1Vivant Skin Care, Inc, 1801 Coral Way, Suite 300, Miami, FL 33145, USA. dr.fulton@vivantskincare.com
Background:
Many fillers have been used to augment the lips. One of these that has provided long-term satisfactory results is liquid silicone.
Objective:
To demonstrate the efficacy and safety of lip augmentation with liquid silicone.
Method:
Following a discussion of the benefits and risks of the procedure and the benefits and risks of alternatives and after answering all of the patients' questions, an informed consent form was signed. After obtaining anesthesia with a regional nerve block of the infraorbital and mental nerves, 0.25 to 0.5 cc of liquid silicone (1,000 centistokes) was injected using the microdroplet technique into the vermilion border of both the upper and lower lips. Depending on the desire of the patient, the procedure was repeated monthly. The augmentation of the lips was documented with histology, micrometry, and digital photography.
Results:
Lip augmentation was achieved gradually during the months following liquid silicone injections into the vermilion border of the lips in the 608 patients studied. Most of the patients requested a second and third injection session. The results were most dramatic in the patients with type I and type II lips and less satisfactory in patients with type III lips. Bruising occurred in the majority of the patients. Eleven patients (2%) developed small palpable granulomas. These granulomas either required no treatment, responded to steroid injections, or were excised.
Conclusion:
The use of liquid silicone remains an effective method of lip augmentation. It returns the adolescent vermilion curl to the lips.

