Evaluation of Physicochemical Properties Following Syringe-to-Syringe Mixing of Hyaluronic Acid Dermal Fillers

Autor: Illyce Nuñez, Julius W. Few, Christopher K. Hee, Mitchel P. Goldman, Sandra Binauld, Aude Bernardin
Rok vydání: 2020
Předmět:
Zdroj: Dermatologic Surgery. 46:1606-1612
ISSN: 1524-4725
1076-0512
DOI: 10.1097/dss.0000000000002806
Popis: BACKGROUND Historically, soft-tissue hyaluronic acid (HA) fillers have been mixed with agents to reduce pain or alter physicochemical properties. OBJECTIVE Evaluate the impact of dilution and mixing on HA filler physicochemical properties. MATERIALS AND METHODS Crosslinked HA filler (VYC-20L, 20 mg/mL) was diluted to 15 mg/mL using saline through 5 or 10 passes between 2 syringes connected using a luer connector. Extrusion force, rheological properties, and microscopic appearance were assessed. Undiluted VYC-15L (15 mg/mL) served as the control. RESULTS Average extrusion force was higher for diluted VYC-20L versus the control, with an increase in slope for gel diluted using 5 passes (0.65) and 10 passes (0.52) versus the control (
Databáze: OpenAIRE