Comparisons
Most health decisions are not “should I do something?” but “which of these two?” These pages take the pairs people actually agonise over and put them side by side: what the evidence says about each, what they cost, how they differ in practice, and which one we would pick for which situation.
Peptides and treatments
11 comparisons
Semaglutide vs Tirzepatide
Which GLP-1 medication is right for you?
BPC-157 vs TB-500
Which healing peptide is right for your recovery?
Metformin vs Rapamycin
Which longevity drug has the better evidence?
NMN vs Metformin
Two different approaches to longevity, which is right for you?
GHK-Cu vs BPC-157
Two regenerative peptides, different uses and strengths
NMN vs NR
The two main NAD+ precursors, which is better?
TRT vs Natural Optimization
Should you try lifestyle changes first, or is TRT the answer?
Retatrutide vs Tirzepatide
Bigger numbers versus something you can actually get
KPV vs BPC-157
Two gut peptides that work on different problems
Semax vs Selank
Different jobs, and the same evidence problem
Sermorelin vs Tesamorelin
Same mechanism, very different evidence
Providers
21 head-to-head provider comparisons, covering price, what is actually prescribed, and how each one handles cancellations.
Browse provider comparisons