Unfortunately Frequently Asked Questions are not yet translated to English.

Links to clinical studies:

• Excellent and rapid absorption of collagen peptides after oral uptake (Iwai et al. 2005 J. Agric. Food Chem. 53)
• Significant and continuous increase of collagen-specific amino acids in human blood after collagen peptide supplementation (Beuker et al. 1993)
• Oesser et al., J. Nutr. (1999)

Peptides ways in body
• Oesser et al., J. Nutr. (1999)
• Oesser et al. Cell Tissue Res (2003)
• Oesser et al. Osteoarthritis Cartilage (2005)

Skin studies
• Proksch et al. (2013) Oral Supplementation of Specific Collagen Peptides Has Beneficial Effects on Human Skin Physiology: A Double-Blind, Placebo-Controlled Study.
• Proksch et al. (2014) Oral Intake of Specific Bioactive Collagen. Peptides Reduces Skin Wrinkles and Increases Dermal Matrix Synthesis.

Joint studies
• Rippe et al., Medcine & Science in Sports & Exercise (2005)
• Clark et al. (2008) 24-Week study on the use of collagen hydrolysate as a dietary supplement in athletes with activity-related joint pain
• McAlindon et al. (2011) Change in knee osteoarthritis cartilage detected by delayed gadolinium enhanced magnetic resonance imaging following treatment with collagen hydrolysate: a pilot randomized controlled trial

Muscle studies
• Zdzieblik et al. (2015) Collagen peptide supplementation in combination with resistance training improves body composition and increases muscle strength in elderly sarcopenic men: a randomised controlled trial