Table 2.

Baseline characteristics of the study subjects

	Placebo	HA 800 k	HA 300 k	Total
Number of subjects	22	19	20	61
Mean age (Age Range)	42.73 ± 0.92 (35–60)	43.68 ± 1.23 (35–60)	43.90 ± 1.06 (35–60)	43.41 ± 0.61
Sex	female
Skin moisture (stratum corneum)	19.50 ± 1.85	19.31 ± 1.78	21.5 ± 1.61	20.10 ± 0.96
Skin viscoelasticity
Max. amplitude	0.32 ± 0.01	0.35 ± 0.01	0.32 ± 0.01	0.33 ± 0.01
Min. amplitude	0.08 ± 0.01	0.09 ± 0.01	0.09 ± 0.01	0.09 ± 0.00
Return rate	73.84 ± 1.76	73.86 ± 1.21	72.74 ± 1.50	73.49 ± 0.88