Clinical Study

Skin Antiageing and Systemic Redox Effects of Supplementation with Marine Collagen Peptides and Plant-Derived Antioxidants: A Single-Blind Case-Control Clinical Study

Table 3

Effects of the 2-month food supplement administration on the ultrasonic properties of the epidermis ().

ParameterEpidermis
Pretreatment periodBefore treatmentAfter treatment

Thickness, m76.9 ± 1.077.0 ± 0.877.6 ± 0.9
Acoustic density35.6 ± 2.435.2 ± 2.235.4 ± 2.0