Collagen hydrolysate intake increases skin collagen expression and suppresses matrix metalloproteinase 2 activity - Zague, Vivian; Freitas, Vanessa Morais; Rosa, Marina da Costa; Castro, Geórgia Álvares de; Jaeger, Ruy Gastaldoni; Machado-Santelli, Glaucia Maria (Journal of Medicinal Food, 2011)