Assertion: collagen's effect | /r/HasProperty | tested at concentration
Facets:
Source sentences:
text: The effects of the addition of collagen peptides alone (C) and in combination with all the other bioactive and antioxidant constituents (All) present within the two nutritional supplements, ACTIVE and FORTE, at the concentrations described in Table 1, were tested and compared to the effect of media alone (designated as the 100% value in all experiments).