I was excited to try this product to help with my stomach issues and I have also been interested in the glow protocol and seeing this is similar with the addition of a few other peptides I thought I would give it a try. I confess, what I reacted to is most probably the copper in the GHK-Cu. I am very copper sensitive but thought it would be okay. So that is why I only took one star off. I am also in the ME CFS CIRS community of health challenges, so if you are not in that factor you might have entirely different results. I am very digestively sensitive and get acid reflux from most things I eat and I noticed I got a lot more reflux immediately after starting. It might have been able to go away if I could have adjusted to the copper, or if it didn't have the copper added to it? I don't know. I have taken some of the other parts alone in the past and have done well with them. So that is my hypothesis. I hope this helps someone else.
And I am considering trying my elderly dog with the remaining capsules at a fraction of the dosage to see if it will help him with his body pain.