Injector Experience and Satisfaction with a Redesigned Syringe for Cohesive Polydensified Matrix Gels: A Non-Comparative Questionnaire-Based Study.

Authors

Elena Rossi, Nabil Fakih-Gomez, Sonja Sattler, Tatjana Pavicic, Ana Díez Gandía, Awat Hassan, Beate Maria Schneider, Chris Hutton, Juan Martín Zárate, Omar Haroon, Rolf Bartsch, Dalvi Humzah, Mimi Rosealie Borrelli

Published in

Clinical, cosmetic and investigational dermatology. Volume 19. Pages 624583. Epub Oct 07, 2026.

Abstract

Clinician-reported evaluations of syringe injectability and handling during hyaluronic acid (HA) filler administration remain limited.
To characterize experienced injectors' perceptions of the usability, handling, and safety-related features of a redesigned (Gen2) syringe for cohesive polydensified matrix (CPM) HA gels.
In this retrospective, non-comparative analysis of a manufacturer-associated questionnaire evaluation, 17 experienced Key Opinion Leaders (KOLs), including nine manuscript authors, evaluated the Gen2 syringe following clinical use (n=12) or simulated use (n=5). The Gen2 syringe and CPM products were provided by the manufacturer. Participants completed a study-specific questionnaire reviewed for clarity, clinical relevance, and face validity and provided qualitative feedback regarding syringe ergonomics, handling, extrusion characteristics, injection control, and perceived safety-related features. No comparator syringe was evaluated. Questionnaire responses were summarized using descriptive statistics, with exact 95% confidence intervals calculated for selected proportions.
Injectors generally rated the evaluated syringe attributes favorably. The integrated Luer-lock was selected as a valuable design feature by 13/17 respondents (76.5%), followed by perceived lower extrusion force (11/17, 64.7%) and the concave thumb grip (9/17, 52.9%). Responses were predominantly favorable regarding perceived injection-volume accuracy and reduction in needle-detachment risk. Five of 17 respondents (29.4%) reported usability considerations, including scale orientation, syringe length, and resistance during rubber-bung removal.
The redesigned syringe was rated favorably by this small, selected group of experienced injectors familiar with the legacy platform. These exploratory, perception-based findings should be interpreted in the context of the non-comparative design, sponsor-associated participant selection and use of a study-specific questionnaire developed for this evaluation. Comparative studies incorporating objective performance measures are warranted.

PMID:
42871322
Bibliographic data and abstract were imported from PubMed on 14 Oct 2026.

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