Evidence over hype
Peptide Sport reads the primary research so you don't have to — separating what actually holds up from the locker-room marketing that doesn't. No hype, every claim sourced, and we say plainly who pays us.
139
sourced articles
21
compounds graded
8
ranked provider rankings
12
free calculators & checkers
11
head-to-head comparisons
Where to get it
Sermorelin and the GH-secretagogues are not over-the-counter, not safely. We looked at who actually prescribes them, what a compounding pharmacy adds to the price, and which providers hide the real cost until checkout.
30 providers compared
See the ranking
Does it work
BPC-157, TB-500, the GH-secretagogues, the growth factors — every compound people reach for to build muscle, checked against what a real trial found, not what a forum thread claims.
11 compounds · 0 with human proof
See the ranking
Run the numbers
A free calculator for reconstitution and dose, plus the one shape of tool nothing else on the web offers — a prohibited-status checker for tested athletes. No signup, nothing leaves your browser.
12 free tools · no signup
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Compare before you commit
Pick the question you actually have.
Where to get it
Recovery & GH-secretagogue providers, ranked on price and oversight.
30 providers compared
Sermorelin, specifically
Sermorelin sellers, ranked on price transparency.
24 providers compared
Tirzepatide
Tirzepatide providers, ranked on true no-commitment monthly cost.
21 providers compared
Willing to commit for it
The absolute floor price on tirzepatide, labeled with what it costs to get there.
21 floor prices compared
Semaglutide
Semaglutide providers, ranked on whether their own site agrees with itself on the price.
20 providers compared
Ranked
NAD+ sellers, ranked on whether they say how many milligrams the price actually buys.
29 providers compared
Ranked
Online testosterone providers, ranked on how much of the real bill you can see before you pay.
10 providers compared
Ranked
GLP-1 sellers, ranked on whether a woman can choose and be told which molecule she receives — the labeled contraceptive instruction attaches to tirzepatide and not to semaglutide.
16 providers compared
Ranked
GLP-1 sellers, ranked on whether one provider can manage both the weight and the testosterone side of the same decision.
16 providers compared
Does any of it work
Every muscle-growth peptide, graded on the human evidence.
11 compounds · 0 with human proof
Every compound, graded
Compounds that nudge your own pituitary to release growth hormone. This is the family the whole “raise GH, build muscle” pitch is built on — and the one where the human evidence is thinnest.
The peptides people reach for after an injury. Almost all of the supporting data here is rodent or cell-culture — we say so on every page.
The weight-loss and body-composition family — the only group here with large, well-run human trials behind it, and the only one where approved drugs exist.
Direct anabolic signals rather than releasers. The highest-risk group on the site, and the one with the clearest safety concerns.
The research
Who's behind this
Derek Olsson is Peptide Sport's sports science editor, writing about recovery, performance, and the peptides athletes actually ask about. Every claim is tied to primary research.
Every conclusion traces back to primary research or official labeling — never to what a mechanism implies.
Inline citations to the studies, including the null results and the caveats sellers leave out.
We say plainly who pays us. Some links here are affiliate links — the write-up beside a provider is what should decide it, not the commission.