Instant skin elasticity

Age is associated with instant skin elasticity in humans.

“Statistically significant negative correlations were identified between age and several parameters, including ISE, glossiness, the L*, a*, and b* values, as well as the erythema index (EI) for the lower lip vermilion (p < 0.05).”

Humanslower lip vermilion

Biophysical Characteristics of Lip Vermilion among Healthy Individuals in Southern China -- Correlations between Age and Vermilion Physiology

Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI)·1 Oct 2025