Table 2 Patented formulations, botanical or chemical of medications from the included studies
Study | Formulation | Source | Component | Quality control reported? (Y/N) | Chemical analysis reported? (Y/N) |
|---|---|---|---|---|---|
Benito 2009 | Colnatur (Protein SA, Girona, Spain), a powdered hydrolyzed natural collagen with a mean molecular weight of 3,500 Da; 10 g hydrolyzed collagen for once-daily administration dissolved in a liquid of the patient’s choice | Colnatur (Protein SA, Girona, Spain) | natural hydrolyzed collagen | N | N |
Chen CC 2023 | Essence of Chicken-hydrolyzed collagen type II doses: 2.0 g of hydrolyzed collagen type II collagen and 5.81 g of Essence of Chicken with proteins and peptides/hydrolyzed collagen type II doses: 2.0 g of hydrolyzed collagen type II collagen | Suntory Beverage and Food Asia (Changhua Taiwan, Good Hygiene Practice certified) | Hydrolyzed collagen type II: derived from chicken sternal cartilage; Essence of Chicken: extracted from chicken meat | N | Y |
JX jiang 2014 | Hydrolyzed collagen bovine 100% | Peptan B 2000,Rousselot | Food grade Bovine Collagen Peptides | Y | N |
Trč T 2011 | 10 g enzymatic hydrolyzed collagen | Colatech® (trade name, uncertain company) | Enzymatic hydrolyzed collagen | N | N |