snap-8 vs ghk-cu
snap-8 (D-tier) vs ghk-cu (S-tier). mechanism, trials, claims vs data, dosing literature. side-by-side reference.
snap-8 — tier D
acetyl octapeptide-3. marketed as topical botox. the science doesn't hold up.
acetyl octapeptide-3. marketed as topical botox. the SNARE-inhibition mechanism is real in vitro; the practical effect doesn't survive the skin barrier.
topical wrinkle cosmetic · half-life not well characterized; topical application context with limited systemic exposure · skin
ghk-cu — tier S
the copper peptide with the strongest skin evidence in the catalog. topical record first, injectable story thinner.
the copper peptide with the strongest cosmetic skin record on the site. the topical evidence is in front; the injectable story is a different conversation.
4,192 genes modulated · half-life tissue-dependent, ~12 hours detectable · skin
at a glance
reptides grades the research record and cites the literature behind every call. research reference only; not medical advice.