Peptide comparisons
Medically reviewed by the Rite Aid Health Team · Last updated July 2, 2026
Choosing between two peptides? These side-by-side guides show what each option is used for, how often it is typically taken, key safety differences, and when one may fit better than the other.
Almost done
Confirm your email to secure 20% off your first compounded-peptide order. We'll notify you when consultations and ordering open.
Get 20% off your first compounded-peptide order
Join the early-access waitlist and we'll notify you the moment consultations and ordering open.
Weight loss and metabolic
- Semaglutide vs Tirzepatide — single-target GLP-1 vs dual GLP-1/GIP.
- Tirzepatide vs Retatrutide — approved dual agonist vs the phase-3 triple agonist.
Growth hormone
- Tesamorelin vs Sermorelin — FDA-approved GHRH analog vs the older GHRH(1-29).
- Sermorelin vs Ipamorelin — GHRH vs selective GHRP, and why they're often paired.
- CJC-1295 vs Ipamorelin — GHRH analog vs GHRP; usually stacked, not chosen.
Healing and skin
- BPC-157 vs TB-500 — two soft-tissue repair compounds, and when to use both.
- GHK-Cu vs BPC-157 — copper tripeptide for skin vs systemic repair peptide.
Sexual health
- PT-141 vs Melanotan II — melanocortin agonists: libido vs pigmentation.
Almost done
Confirm your email to secure 20% off your first compounded-peptide order. We'll notify you when consultations and ordering open.
Get 20% off your first compounded-peptide order
Join the early-access waitlist and we'll notify you the moment consultations and ordering open.
For general education only — not medical advice or a treatment recommendation. Peptides are not a substitute for care from a licensed provider. Talk to a qualified healthcare professional before you start, stop, or change any peptide, medication, or supplement.