Treatment for Aging Skin with Multifrequency Radiofrequency

Table 3

Area fraction (%) of collagen, elastic fiber, and stro-1 in the dermis before treatment and 4 weeks after the fifth treatment session.

	Pretreatment (%)	Posttreatment (%)	Ratio
Collagen	50.73	58.70	1.16
Collagen 1	38.34	40.34	1.28
Collagen 3	34.49	48.01	1.05
Elastic fiber	37.45	47.90	1.39
Stro-1	13.00	30.83	2.37