Keep in mind the redheaded family genetics:
I've come to the conclusion that GHKcu, GLOW & KLOW injections are worthless for me to be doing. Day after day, week after week...
Topical, however, seems to be more beneficial for me. Lots of good things to say about it. I have not tried adding raw GHK or SNAP 8 yet and might not do so, as my white skin is already very sensitive.
I'm not saying this is true for everyone but it is for me. If you're having the same thoughts but not being open about it (these peps are so highly touted here), you are not alone.
I have no intention of buying the other peps separately that are included in some of these formulas. Just using the topical is good enough.