Peptide Comparisons
Compound against compound, format against format, and research compound against licensed medicine. Each page states the structural difference, what the published literature covers for each side, and which of the two — if either — we actually supply.
These pages exist because the questions get asked and most sellers answer them with a sentence. Every comparison below sets out the mechanism or structure that separates the two, the stage the published evidence has reached for each, and the regulatory status of each side. Where we do not stock one of the two, the page says so and does not pretend to an evidence file we have not built.
Nothing here ranks one compound above another. Picking a winner on a research compound is making a use claim by implication, and these pages do not make use claims.
Both sides in our range
- Retatrutide vs TirzepatideThree receptors against two, same sizes and formats either way
- Ipamorelin vs TesamorelinTwo receptors, and the widest evidence gap in the catalogue
- CJC-1295 DAC vs No DACWhat the albumin-binding attachment changes
- BPC-157 vs TB-500Unrelated mechanisms, unequal evidence records
- GLOW vs KLOWThe K is KPV — a four-component blend against a three
Format against format
Against a compound we do not stock
- Tirzepatide vs SemaglutideTwo receptors against one, with a published head-to-head trial
- Semax vs SelankAn ACTH-fragment analogue against a tuftsin analogue
- Ipamorelin vs SermorelinDifferent receptors — and the closer counterpart is CJC-1295
- Melanotan 1 vs Melanotan 2One is a licensed European medicine; the other is not
Against a licensed medicine
Handling, not comparing
Two of the questions that bring people to a comparison page are not comparisons at all — they are about what to do with a vial once it arrives. Those have their own pages: how to reconstitute peptides for the concentration arithmetic and the handling, how to store peptides for temperature and light, and the reconstitution calculator to do the division for you.
Supply note. Peptiq supplies research compounds for laboratory research use only. We are not a pharmacy and we do not supply licensed medicines. Where a licensed medicine is named on this page it is named to draw a distinction, not because we sell it, and nothing here is guidance on use.
Frequently asked questions
Do these pages say which compound is better?
No. The receptor count, the structure and the size of the published record are stated for each side, and none of those is a performance claim. Ranking research compounds against each other would be making a use claim by implication.
Why do some pages compare against something you do not sell?
Because the comparison is asked for. Where we do not stock one side, the page says so plainly and limits itself to that compound's published chemistry and regulatory status, rather than summarising a research record we have not built.
Are any of these licensed medicines?
Some of the compounds named on these pages are licensed medicines under their brand names. Peptiq does not supply licensed medicines. Everything in our range is an unlicensed research compound for laboratory research use only.