Figure 1. The study flow diagram. Abbreviations: CTP, Collagen tripeptide; ITT, Intention-to-Treat; PP, Per Protocol

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