Check out this video with Dr. William Seeds, who is the president of the peptide society. Apparently MK-677 is known for being a sub-par alternative to HGH. It is known for causing a lot of bloat, water retention, lethargy and numbness in fingers, most likely due to the water retention/ bloat. Peptides like Ipamorelin, tesamorelin and CJC-1295 are the much preferred alternatives to HGH. They come with all the benefits, with very little to no sides, and are a good balance between efficacy and cost.