- Proksch E, Schunk M, Zague V, Segger D, Degwert J, Oesser S: Oral intake of specific bioactive collagen peptides reduces skin wrinkles and increases dermal matrix synthesis. Skin Pharmacol Physiol 2014; 27: 113 – 119
- Chung JH, Seo JY, Choi HR, Lee MK, Youn CS, Rhie G, Cho KH, Kim KH, Park KC, Eun HC: Modulation of skin collagen metabolism in aged and photoaged human skin in vivo. J Invest Dermatol 2001; 117: 1218 – 1224
- Li GY, Fukunaga S, Takenouchi K, Nakamura F: Comparative study of the physiological properties of collagen, gelatin and collagen hydrolysate as cosmetic materials. Int J Cosmet Sci 2005; 27: 101-106
- Xhauflaire-Uhoda E, Fontaine K, Pierard GR: Kinetics of moisturizing and firming effects of cosmetic formulations. Int J Cosmet Sci 2008; 30: 131 – 138
- Takema Y, Yorimoto Y, Kawai M: The relationship between age-related changes in the physical properties and development of wrinkles in human facial skin. J Soc Cormet Chem 1995; 46: 163 – 173
- Zague V, de Freitas V, da Costa RM, de Castro GA, Jaeger RG, Hado-Santelli GM: Collagen hydrolysate intake increases skin collagen expression and suppresses matrix metalloproteinase 2 activity. J Med Food 2011; 14: 618 – 624
- In Vitro study 07.1149, January 2008, Laboratoires BIO-HC, Pessac, France.
- Stahl W1, Sies H: β-Carotene and other carotenoids in protection from sunlight. Am J Clin Nutr. 2012 Nov; 96(5):1179S-84S.
- Zague V: A new view concerning the effects of collagen hydrolysate intake on skin properties. Arch Dermatol Res 2008; 300: 479 – 483
- Oesser S, Adam M, Babel W, Seifert J: Oral administration of 14C-labeled gelatin hydrolysate leads to an accumulation of radioactivity in the cartilage of mice. J Nutr 1999; 129:1891-1895)
- Kim SK, Kim YT, Byun HG, Park PJ, Ito H: Purification and characterization of antioxidative peptides from bovine skin. J Biochem Mol Biol 2001; 34: 219-224
- Mendis E, Rajapakse N, Kim SK: Antioxidant properties of a radical-scavenging peptide purified from enzymatically prepared fish skin gelatin hydrolysate. J Agric Food Chem 2005; 53: 581 – 587
- Mendis E, Rajapakse N, Byun HG, Kim SK: Investigation of jumbo squid (Dosidicus gigas) skin gelatin peptides for their in vitro antioxidant effects. Life Sci 2005; 77: 2166 – 2178
- Li B, Chen F, Wang X, Ji B, Wu Y: Isolation and identification of antioxidative peptides from porcine collagen hydrolysate by consecutive chromatography and electrospray ionization mass spectrometry. Food Chem 2007; 102: 1135-1143
- Matsuda N, Koyama Y, Hosaka Y, Ueda H, Watanabe T, Araya T, Irie S, Takehana K: Effects of ingestion of collagen peptide on collagen fibrils and glycosaminologycans in the dermis. J Nutr Sci Vitaminol (Tokyo) 2006; 52: 211 – 215
- Tanaka M, Koyama Y-I, Nomura Y: Effects of collagen peptide ingestion on OVB-induced skin damage. Biosci Biotechnol Biochem 2009; 73: 930-932
- Buraczewska I, Berne B, Lindberg M, Torma H, Loden M: Changes in skin barrier function following long-term treatment with moisturizers: a randomized controlled trial. Br J Dermatol 2007; 156: 492 – 498
- Sato T, Sakamato O, Odanaka W, Yoshida K, and Urishibata, O: Clinical Effects of dietary hyaluronic acid on dry,rough skin. J. Aesthetic Dermatology Vol. 12 109-120, 2002