Collalloc is a Czech brand of high quality collagen. It is not a classic manufacturer of sports supplements, which most people are used to. In addition to the classic collagen, the brand also offers a concentrated version of Collalloc Nano and vitamin C to support the effect of the previous two products. Personally, I consider this a big plus, as brands focusing on only one specific product will understandably putcare much more about its quality than manufacturers who offer an extremely wide range.
