bpc+tb blend vs ghk-cu
updated
bpc+tb blend (tier A) vs ghk-cu (tier S): what each is, why each got its grade, half-life and source counts side by side.
bpc+tb blend · tier A
the wolverine stack. bpc-157 + tb-500. coherent repair logic, heavy clinic folklore, zero controlled trials on the blend.
tier rationale
A-tier because both components have unusually strong preclinical stories for the repair category and the pairing is mechanistically coherent. not S-tier because the blend has no drug-grade formal evidence, no phase 3 package, no FDA approval, and no controlled human tendon-recovery trial. A reflects a strong mechanism plus persistent real-world signal, not certainty.
ghk-cu · tier S
the copper peptide with the strongest skin evidence in the catalog. topical record first, injectable story thinner.
tier rationale
the most studied cosmetic peptide in history. pickart 1973: young plasma applied to aged liver cells made them behave young. five decades of topical research on collagen, wound healing, inflammation. cleanest safety profile in the catalog after 40+ years of cosmetic use. S because topical efficacy is documented and safety is exceptional. the asterisk: injectable GHK-Cu has a much thinner human evidence base.
at a glance
| bpc+tb blend | ghk-cu | |
|---|---|---|
| tier | A | S |
| category | healing / tissue | skin / cosmetic / healing / tissue |
| sources | 27 | 30 |
| claims evaluated | 6 | 7 |
| half-life | component-dependent; no validated blend pharmacokinetic package | plasma: minutes |
| dosing data | yes | yes |
reptides grades the research record and cites the literature behind every call. research reference only; not medical advice.