Skin thickness and density
The results of epidermis and dermis thickness were compiled in Table Change of epidermis and dermis thickness (μm) at different oral hyaluronic acid administration levels.Abbreviation: HA, hyaluronic acid.
The bold values indicate statistical difference vs. 0‐week results.Additionally, the dermis density data were summarized in Table Change of dermis density (%) at different oral hyaluronic acid administration levels.Abbreviation: HA, hyaluronic acid.
The bold values indicate statistical difference vs. 0‐week results.One subject was selected from both low‐ and high‐administration groups, and their skin ultrasound test results were directly compared to their Visia photos as shown in Figure Visia and ultrasound skin diagnostic photos of subjects in the low dose and high dose groups.