Table 2.

Rheological properties of HA-L-PNIPAM hydrogel candidates and of commercial products (n = 3).

Formulation	HA Content (mg/mL)	Temperature (°C)	G′	G″	Tan δ = $\frac{{\mathbf{G}}^{″}}{{\mathbf{G}}^{\prime }}$
Belotero Balance®	22.5	37	53	33	0.62
Belotero Volume®	26.0	37	233	54	0.23
Candidate 1	15.0	22	105.1	50.1	0.48
		37	234.1	28.7	0.13
Candidate 2	8.0	22	167.8	83.8	0.50
		37	420.2	34.9	0.08
Candidate 3	9.5	22	66.9	35.3	0.50
		37	92.5	43.5	0.49