Is there mercury in Shore Magic collagen? August 05, 2020 19:56 Updated No. Every batch of our collagen is 3rd party tested twice to ensure purity. Related articles Do you perform testing on each lot of Shore Magic Collagen for heavy metals? Is Shore Magic Collagen tested on animals? Why is Shore Magic superior to other sources of collagen? Where is your fish sourced from? What type of collagen is Shore Magic?