Figure 3. (color online) Changes in capacitance (Corneometer®) from weeks 6 to weeks 12 (PP Set) (**: compared within group; p-value for Paired t-test, #: compared between ‘CTP’ and ‘Placebo’ groups; p-value for Wilcoxon rank sum test)

From

The Beneficial Effects of Collagen Tripeptide on Deep Wrinkling and Skin Moisturization: A Randomized Controlled Trial

Jin Hee Shin, Ae Hyang Kim, Hyun Woo Lee, Jun Il Kim, Hae Kwang Lee

Journal of Food and Nutrition Research. 2021, 9(10), 508-515 doi:10.12691/jfnr-9-10-2