Great news – when research studies evaluate the positive effects of collagen, they also find out how well the product is tolerated and if there are any side-effects. Researchers, Juher and Pérez (2015), collated information from approximately 60 studies where people took daily oral collagen peptides. They recorded feedback from thousands of participants who took part in these studies and found that collagen peptides were tolerated very well (i.e. were free from negative side-effects) and had excellent digestibility and bioavailability, making them an attractive supplement to take for long-term use.

However, do note that it is important to use a high- quality product that has been tested for toxins and are deemed safe. This is important because marine collagen is sourced from fish and fish products can contain heavy metals. At Correxiko, we only source deep sea fish (cod, haddock, pollock) from pristine Canadian waters. All our batches are independently tested for heavy metals and other contaminants.