This is the difference between AHK-Cu vs GHK-Cu in a nutshell
Possible effects include discomfort, bruising, irritation, bleeding, infection, lightheadedness, or a reaction to an ingredient
Run together, they are described in research-use contexts as creating a more complete environment for soft-tissue repair than either compound alone, which is why athletes and recovery-focused researchers gravitate to this stack for tendinopathy, ligament strain, and post-surgical recovery rehabilitation models
Benoist CC, Kawas LH, Zhu M, Tyson KA, Stillmaker L, et al
Using a trusted provider guarantees you get the real medication
Summary As you can see, theres a lot to consider when optimizing vitamin B12 intake in pregnancy