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. 2021 Mar 19;13(6):948. doi: 10.3390/polym13060948

Figure 7.

Figure 7

Vertical elongation comparison between seven dermal fillers illustrating the tendency of a cohesive product to stick to itself. (A) HA hydrogel 22 mg/mL; (B) HA hydrogel 24 mg/mL; (C) HA hydrogel 26 mg/mL LV; (D) HA hydrogel 26 mg/mL LR; (E) HA hydrogel 26 mg/mL with CaHA; (F) HA hydrogel 28 mg/mL; (G) HA non cross-linked hydrogel 18 mg/mL. For each sample, the load gap (1 mm) and the standard intermediate gaps of 4-8-12 mm and 2-3-4 mm, respectively, for the cross-linked (A–F) and non-cross linked (G) fillers, were evaluated together at the point before breaking and at the breaking point.